Overview

Core configuration for the renderer.

#include <Ultralight/CAPI/CAPI_Config.h>

These are various configuration options that can be used to customize the behavior of the library. These options can only be set once before creating the Renderer.

Functions
ULConfig	ulCreateConfig (void)
	Create config with default values (see <Ultralight/platform/Config.h>).
void	ulDestroyConfig (ULConfig config)
	Destroy a ULConfig instance created by ulCreateConfig().
void	ulConfigSetCachePath (ULConfig config, ULString cache_path)
	A writable OS file path to store persistent Session data in.
void	ulConfigSetResourcePathPrefix (ULConfig config, ULString resource_path_prefix)
	The relative path to the resources folder (loaded via the FileSystem API).
void	ulConfigSetFaceWinding (ULConfig config, ULFaceWinding winding)
	The winding order for front-facing triangles.
void	ulConfigSetFontHinting (ULConfig config, ULFontHinting font_hinting)
	The hinting algorithm to use when rendering fonts.
void	ulConfigSetFontProfile (ULConfig config, ULFontProfile font_profile)
	The font-appearance preset providing default values for the text rendering knobs (font gamma, font contrast, font stem darkening, font embolden).
void	ulConfigSetFontBlendMode (ULConfig config, ULFontBlendMode font_blend_mode)
	Set how antialiased glyph edges are blended into the page (Default = kFontBlendMode_Profile, meaning the font profile's value).
void	ulConfigSetFontGamma (ULConfig config, double font_gamma)
	The gamma to use when compositing font glyphs, change this value to adjust contrast (Adobe and Apple prefer 1.8, others may prefer 2.2).
void	ulConfigSetFontContrast (ULConfig config, double font_contrast)
	Additional contrast enhancement applied when compositing font glyphs.
void	ulConfigSetFontStemDarkening (ULConfig config, double font_stem_darkening)
	Stem-darkening strength for rendered text.
void	ulConfigSetFontEmbolden (ULConfig config, double font_embolden)
	Extra stroke weight applied to glyph shapes, as a fraction of the font size (for example, 0.01 widens stems by roughly 1% of the em).
void	ulConfigSetUserStylesheet (ULConfig config, ULString css_string)
	Global user-defined CSS string (included before any CSS on the page).
void	ulConfigSetForceRepaint (ULConfig config, bool enabled)
	Whether or not to continuously repaint any Views, regardless if they are dirty.
void	ulConfigSetEnablePhoton (ULConfig config, bool enabled)
	Whether or not GPU-accelerated Views render vector content (path fills and strokes) analytically instead of tessellating it to triangles.
void	ulConfigSetEnablePhotonText (ULConfig config, bool enabled)
	Whether or not text and color emoji also render analytically when analytic vector rendering is enabled (see ulConfigSetPhotonTextMinPx for the size cutoff).
void	ulConfigSetPhotonTextMinPx (ULConfig config, unsigned int min_px)
	The minimum on-screen glyph size, in pixels, at which text renders analytically when analytic text is enabled; smaller glyphs use the rasterized glyph atlas.
void	ulConfigSetPageSettleDelay (ULConfig config, double delay)
	Additional delay (in seconds) on top of the engine's internal page-settled detection.
void	ulConfigSetPageSettleCycles (ULConfig config, unsigned int cycles)
	The number of consecutive idle samples the library requires before it declares a page settled.
void	ulConfigSetPageSettleTick (ULConfig config, double tick)
	How often (in seconds) the library samples a loading page for idleness.
void	ulConfigSetRecycleDelay (ULConfig config, double delay)
	The interval (in seconds) at which the library automatically recycles internal caches and reclaims memory.
void	ulConfigSetIdleGCEnabled (ULConfig config, bool enabled)
	Whether the library automatically collects garbage and returns freed memory to the OS without embedder involvement.
void	ulConfigSetIdleGCIdleTime (ULConfig config, double idle_time)
	How long (in seconds) a page must be idle, with no user input, before automatic idle collection begins.
void	ulConfigSetMemoryCacheSize (ULConfig config, unsigned int size)
	The size of the library's memory cache in bytes.
void	ulConfigSetPageCacheSize (ULConfig config, unsigned int size)
	The number of pages to keep in the cache.
void	ulConfigSetMemoryProfile (ULConfig config, ULMemoryProfile memory_profile)
	Memory vs.
void	ulConfigSetOverrideRAMSize (ULConfig config, unsigned int size)
	The system's physical RAM size in bytes.
void	ulConfigSetMinLargeHeapSize (ULConfig config, unsigned int size)
	The minimum size of large VM heaps in JavaScriptCore.
void	ulConfigSetMinSmallHeapSize (ULConfig config, unsigned int size)
	The minimum size of small VM heaps in JavaScriptCore.
void	ulConfigSetMaxHeapSize (ULConfig config, unsigned int size)
	A soft target for the total JavaScriptCore heap size, in bytes.
void	ulConfigSetNumRendererThreads (ULConfig config, unsigned int num_renderer_threads)
	The number of threads to use in the Renderer (for parallel painting on the CPU, etc.).
void	ulConfigSetMaxUpdateTime (ULConfig config, double max_update_time)
	The max amount of time (in seconds) to allow repeating timers to run during each call to Renderer::Update.
void	ulConfigSetBitmapAlignment (ULConfig config, unsigned int bitmap_alignment)
	The alignment (in bytes) of the BitmapSurface when using the CPU renderer.
void	ulConfigSetEffectQuality (ULConfig config, ULEffectQuality quality)
	The quality of effects (blurs, CSS filters, SVG filters, etc.) to use when rendering.
void	ulConfigSetIgnoreSSLErrors (ULConfig config, bool enabled)
	Whether to ignore SSL certificate errors when using the built-in network backend.
void	ulConfigSetUseSystemCertificateStore (ULConfig config, bool enabled)
	Whether to validate TLS server certificates against the operating system's certificate store instead of the certificate bundle shipped with the application (resources/cacert.pem).
void	ulConfigSetPaintFullLayers (ULConfig config, bool enabled)
	Whether to paint full layers when dirty instead of just the dirty subregion.
void	ulConfigSetResourceSampleInterval (ULConfig config, unsigned int interval_ms)
	The interval (in milliseconds) at which the library samples and emits resource counters (memory usage, VRAM, cache sizes, etc.) via the Profiler's EmitCounter() callback.
void	ulConfigSetDeveloperMode (ULConfig config, bool developer_mode)
	Set whether or not the library runs in developer mode (Default = false).
void	ulConfigSetJavaScriptDiagnostics (ULConfig config, ULDiagnosticsLevel level)
	Set the diagnostics level for JavaScript APIs that leave their own level at the default (Default = kULDiagnosticsLevel_Auto).
void	ulConfigSetDOMDiagnostics (ULConfig config, ULDiagnosticsLevel level)
	Set the diagnostics level for the DOM API and data bindings (Default = kULDiagnosticsLevel_Auto).
void	ulConfigSetMinLogLevel (ULConfig config, ULLogLevel level)
	Set the least severe level the library sends to the Logger; less severe messages are dropped (Default = kLogLevel_Info).
void	ulConfigSetMediaProfile (ULConfig config, ULMediaProfile media_profile)
	The memory-vs-performance profile for the HTML5 media subsystem.

Enumerations
enum	ULDiagnosticsLevel { kULDiagnosticsLevel_Off = 0 , kULDiagnosticsLevel_Warn = 1 , kULDiagnosticsLevel_Strict = 2 , kULDiagnosticsLevel_Auto = 3 }
	How much checking and warning the library does for mistakes made through one of its APIs. More...

Function Documentation

◆ ulConfigSetBitmapAlignment()

void ulConfigSetBitmapAlignment	(	ULConfig	config,
		unsigned int	bitmap_alignment )

The alignment (in bytes) of the BitmapSurface when using the CPU renderer.

The underlying bitmap associated with each BitmapSurface will have row_bytes padded to reach this alignment.

Aligning the bitmap helps improve performance when using the CPU renderer. Determining the proper value to use depends on the CPU architecture and max SIMD instruction set used.

We generally target the 128-bit SSE2 instruction set across most PC platforms so '16' is a safe value to use.

You can set this to '0' to perform no padding (row_bytes will always be width * 4) at a slight cost to performance.

(Default = 16)

◆ ulConfigSetCachePath()

void ulConfigSetCachePath	(	ULConfig	config,
		ULString	cache_path )

A writable OS file path to store persistent Session data in.

This data may include cookies, cached network resources, indexed DB, etc.

Note: Files are only written to the path when using a persistent Session.

◆ ulConfigSetDeveloperMode()

void ulConfigSetDeveloperMode	(	ULConfig	config,
		bool	developer_mode )

Set whether or not the library runs in developer mode (Default = false).

Developer mode turns the kULDiagnosticsLevel_Auto levels into kULDiagnosticsLevel_Warn, and lets the diagnostics environment variables (UL_JS_DIAGNOSTICS, UL_DOM_DIAGNOSTICS) override them. You should turn it on in your development builds and leave it off in the builds you ship (a release library ignores those variables when developer mode is off, so a shipped app's behavior can't be changed from its environment). Each variable takes off, warn, or strict.

Parameters

config	The config.
developer_mode	Whether or not to run in developer mode.

◆ ulConfigSetDOMDiagnostics()

void ulConfigSetDOMDiagnostics	(	ULConfig	config,
		ULDiagnosticsLevel	level )

Set the diagnostics level for the DOM API and data bindings (Default = kULDiagnosticsLevel_Auto).

Parameters

config	The config.
level	The diagnostics level.

◆ ulConfigSetEffectQuality()

void ulConfigSetEffectQuality	(	ULConfig	config,
		ULEffectQuality	quality )

The quality of effects (blurs, CSS filters, SVG filters, etc.) to use when rendering.

(Default = kEffectQuality_Medium)

See also: ULEffectQuality

◆ ulConfigSetEnablePhoton()

void ulConfigSetEnablePhoton	(	ULConfig	config,
		bool	enabled )

Whether or not GPU-accelerated Views render vector content (path fills and strokes) analytically instead of tessellating it to triangles.

Analytic rendering is resolution-independent: edges stay crisp under any zoom or transform.

Path rendering on CPU-rendered Views is unaffected. Disabling this also disables analytic text (see ulConfigSetEnablePhotonText).

(Default = True)

◆ ulConfigSetEnablePhotonText()

void ulConfigSetEnablePhotonText	(	ULConfig	config,
		bool	enabled )

Whether or not text and color emoji also render analytically when analytic vector rendering is enabled (see ulConfigSetPhotonTextMinPx for the size cutoff).

Ignored when analytic vector rendering is disabled.

This selects the text appearance for both renderers: CPU-rendered Views match the analytic look (unhinted outlines, fractional glyph placement) so output stays near-identical across renderers.

(Default = True)

◆ ulConfigSetFaceWinding()

void ulConfigSetFaceWinding	(	ULConfig	config,
		ULFaceWinding	winding )

The winding order for front-facing triangles.

Precondition: Only used when GPU rendering is enabled for the View.

(Default = kFaceWinding_CounterClockwise)

◆ ulConfigSetFontBlendMode()

void ulConfigSetFontBlendMode	(	ULConfig	config,
		ULFontBlendMode	font_blend_mode )

Set how antialiased glyph edges are blended into the page (Default = kFontBlendMode_Profile, meaning the font profile's value).

See also: ULFontBlendMode

◆ ulConfigSetFontContrast()

void ulConfigSetFontContrast	(	ULConfig	config,
		double	font_contrast )

Additional contrast enhancement applied when compositing font glyphs.

Values above 0 thicken the midtones of antialiased glyph edges, increasing apparent text weight at every size. The useful range is 0.0 (none) to about 1.0. Set below 0 to use the value from the font profile. (Default = -1.0, meaning the profile's value; the default profile uses 0.3)

◆ ulConfigSetFontEmbolden()

void ulConfigSetFontEmbolden	(	ULConfig	config,
		double	font_embolden )

Extra stroke weight applied to glyph shapes, as a fraction of the font size (for example, 0.01 widens stems by roughly 1% of the em).

Applies uniformly at every size and on both light and dark backgrounds; glyph advances and layout are unaffected. Set below 0 to use the value from the font profile. (Default = -1.0, meaning the profile's value)

◆ ulConfigSetFontGamma()

void ulConfigSetFontGamma	(	ULConfig	config,
		double	font_gamma )

The gamma to use when compositing font glyphs, change this value to adjust contrast (Adobe and Apple prefer 1.8, others may prefer 2.2).

Set to 0 to use the value from the font profile. (Default = 0, meaning the profile's value; the default profile uses 2.2)

◆ ulConfigSetFontHinting()

void ulConfigSetFontHinting	(	ULConfig	config,
		ULFontHinting	font_hinting )

The hinting algorithm to use when rendering fonts.

(Default = kFontHinting_Normal)

See also: ULFontHinting

◆ ulConfigSetFontProfile()

void ulConfigSetFontProfile	(	ULConfig	config,
		ULFontProfile	font_profile )

The font-appearance preset providing default values for the text rendering knobs (font gamma, font contrast, font stem darkening, font embolden).

Knobs you set explicitly override the preset's values. (Default = kFontProfile_Default)

See also: ULFontProfile

◆ ulConfigSetFontStemDarkening()

void ulConfigSetFontStemDarkening	(	ULConfig	config,
		double	font_stem_darkening )

Stem-darkening strength for rendered text.

Boosts the coverage of antialiased glyph pixels so thin stems keep their apparent weight on light backgrounds; each preset shapes how the boost varies with glyph size. Text on dark backgrounds is unaffected. Set below 0 to use the value from the font profile. (Default = -1.0, meaning the profile's value)

◆ ulConfigSetForceRepaint()

void ulConfigSetForceRepaint	(	ULConfig	config,
		bool	enabled )

Whether or not to continuously repaint any Views, regardless if they are dirty.

This is mainly used to diagnose painting/shader issues and profile performance.

(Default = False)

◆ ulConfigSetIdleGCEnabled()

void ulConfigSetIdleGCEnabled	(	ULConfig	config,
		bool	enabled )

Whether the library automatically collects garbage and returns freed memory to the OS without embedder involvement.

When a page builds up a large JavaScript heap and then goes quiet, that memory would otherwise stay resident until the next burst of activity or an explicit ulRecycle() / ulPurgeMemory(). With this enabled, the library collects on its own and pushes the freed memory back to the OS, so the process footprint drifts back down after heavy content.

Note: Reclamation only happens while ulUpdate() is being pumped. An application that stops calling ulUpdate() while idle gets no automatic reclamation; call ulRecycle() / ulPurgeMemory() explicitly in that case.

(Default = True)

◆ ulConfigSetIdleGCIdleTime()

void ulConfigSetIdleGCIdleTime	(	ULConfig	config,
		double	idle_time )

How long (in seconds) a page must be idle, with no user input, before automatic idle collection begins.

Lower values reclaim sooner after the user stops interacting; higher values wait longer before assuming the page is idle. Only used when idle GC is enabled.

(Default = 2.0)

See also: ulConfigSetIdleGCEnabled()

◆ ulConfigSetIgnoreSSLErrors()

void ulConfigSetIgnoreSSLErrors	(	ULConfig	config,
		bool	enabled )

Whether to ignore SSL certificate errors when using the built-in network backend.

When set to true, SSL certificate verification will be disabled, allowing connections to servers with self-signed or invalid certificates.

Warning: This reduces security and should never be enabled in production.

(Default = false)

◆ ulConfigSetJavaScriptDiagnostics()

void ulConfigSetJavaScriptDiagnostics	(	ULConfig	config,
		ULDiagnosticsLevel	level )

Set the diagnostics level for JavaScript APIs that leave their own level at the default (Default = kULDiagnosticsLevel_Auto).

Parameters

config	The config.
level	The diagnostics level.

◆ ulConfigSetMaxHeapSize()

void ulConfigSetMaxHeapSize	(	ULConfig	config,
		unsigned int	size )

A soft target for the total JavaScriptCore heap size, in bytes.

This is not a hard limit: the heap may grow beyond this target. When it does, the garbage collector treats the heap as under memory pressure and reclaims more aggressively to bring it back toward the target.

Set to 0 to derive this value from the memory profile.

(Default = 0)

See also: ulConfigSetMemoryProfile()

◆ ulConfigSetMaxUpdateTime()

void ulConfigSetMaxUpdateTime	(	ULConfig	config,
		double	max_update_time )

The max amount of time (in seconds) to allow repeating timers to run during each call to Renderer::Update.

The library will attempt to throttle timers if this time budget is exceeded.

(Default = 1.0 / 200.0)

◆ ulConfigSetMediaProfile()

void ulConfigSetMediaProfile	(	ULConfig	config,
		ULMediaProfile	media_profile )

The memory-vs-performance profile for the HTML5 media subsystem.

Picks a tradeoff between peak memory per media element and playback smoothness / seek responsiveness. The value is read once when each media element starts loading and stays fixed for that element's lifetime; later changes apply only to subsequently-loaded elements.

(Default = kMediaProfile_Balanced)

Precondition: Requires the Pro edition or higher.

See also: ULMediaProfile

◆ ulConfigSetMemoryCacheSize()

void ulConfigSetMemoryCacheSize	(	ULConfig	config,
		unsigned int	size )

The size of the library's memory cache in bytes.

Note: You should increase this if you anticipate handling pages with large resources, Safari typically uses 128+ MiB for its cache.

(Default = 256 * 1024 * 1024)

◆ ulConfigSetMemoryProfile()

void ulConfigSetMemoryProfile	(	ULConfig	config,
		ULMemoryProfile	memory_profile )

Memory vs.

performance tuning for the renderer's HTML / JavaScript engine heaps. See the ULMemoryProfile enumerators for the effect of each profile.

Read once when the Renderer is created. (Default = kMemoryProfile_Balanced)

See also: ULMemoryProfile

◆ ulConfigSetMinLargeHeapSize()

void ulConfigSetMinLargeHeapSize	(	ULConfig	config,
		unsigned int	size )

The minimum size of large VM heaps in JavaScriptCore.

Set this to a lower value to make these heaps start with a smaller initial value.

Set to 0 to derive this value from the renderer's memory profile.

(Default = 0)

◆ ulConfigSetMinLogLevel()

void ulConfigSetMinLogLevel	(	ULConfig	config,
		ULLogLevel	level )

Set the least severe level the library sends to the Logger; less severe messages are dropped (Default = kLogLevel_Info).

Diagnostics warnings are sent at kLogLevel_Warning, so a minimum of kLogLevel_Error or kLogLevel_Fatal hides them.

Parameters

config	The config.
level	The minimum log level.

◆ ulConfigSetMinSmallHeapSize()

void ulConfigSetMinSmallHeapSize	(	ULConfig	config,
		unsigned int	size )

The minimum size of small VM heaps in JavaScriptCore.

Set this to a lower value to make these heaps start with a smaller initial value.

(Default = 1 * 1024 * 1024)

◆ ulConfigSetNumRendererThreads()

void ulConfigSetNumRendererThreads	(	ULConfig	config,
		unsigned int	num_renderer_threads )

The number of threads to use in the Renderer (for parallel painting on the CPU, etc.).

You can set this to a certain number to limit the number of threads to spawn.

Note

If this value is 0, the number of threads will be determined at runtime using the following formula:

max(PhysicalProcessorCount() - 1, 1)

◆ ulConfigSetOverrideRAMSize()

void ulConfigSetOverrideRAMSize	(	ULConfig	config,
		unsigned int	size )

The system's physical RAM size in bytes.

JavaScriptCore tries to detect the system's physical RAM size to set reasonable allocation limits. Set this to anything other than 0 to override the detected value. Size is in bytes.

This can be used to force JavaScriptCore to be more conservative with its allocation strategy (at the cost of some performance).

◆ ulConfigSetPageCacheSize()

void ulConfigSetPageCacheSize	(	ULConfig	config,
		unsigned int	size )

The number of pages to keep in the cache.

(Default: 0, none)

Note

Safari typically caches about 5 pages and maintains an on-disk cache to support typical web-browsing activities.

If you increase this, you should probably increase the memory cache size as well.

(Default = 0)

◆ ulConfigSetPageSettleCycles()

void ulConfigSetPageSettleCycles	(	ULConfig	config,
		unsigned int	cycles )

The number of consecutive idle samples the library requires before it declares a page settled.

Together with the settle tick this sets the shortest time a page can take to settle (cycles * tick). Lower it to settle sooner, at the cost of tolerance for late layout or paint.

(Default = 5)

See also: ulConfigSetPageSettleTick()

◆ ulConfigSetPageSettleDelay()

void ulConfigSetPageSettleDelay	(	ULConfig	config,
		double	delay )

Additional delay (in seconds) on top of the engine's internal page-settled detection.

Increase this if you want a little more assurance that the page has fully settled (animations finished, late-arriving network activity complete) before ulViewIsSettled() flips and the page-settled callback fires, at the cost of additional wait time.

(Default = 0.1)

See also: ulViewSetPageSettledCallback()

◆ ulConfigSetPageSettleTick()

void ulConfigSetPageSettleTick	(	ULConfig	config,
		double	tick )

How often (in seconds) the library samples a loading page for idleness.

(Default = 0.006)

See also: ulConfigSetPageSettleCycles()

◆ ulConfigSetPaintFullLayers()

void ulConfigSetPaintFullLayers	(	ULConfig	config,
		bool	enabled )

Whether to paint full layers when dirty instead of just the dirty subregion.

This can be useful for debugging rendering issues or when dirty region tracking is causing artifacts.

Note: Enabling this will impact performance as entire layers are redrawn.

(Default = false)

◆ ulConfigSetPhotonTextMinPx()

void ulConfigSetPhotonTextMinPx	(	ULConfig	config,
		unsigned int	min_px )

The minimum on-screen glyph size, in pixels, at which text renders analytically when analytic text is enabled; smaller glyphs use the rasterized glyph atlas.

Set to 0 to render all text analytically. (Default = 16)

◆ ulConfigSetRecycleDelay()

void ulConfigSetRecycleDelay	(	ULConfig	config,
		double	delay )

The interval (in seconds) at which the library automatically recycles internal caches and reclaims memory.

The library performs this lightweight recycle for you from inside ulUpdate() / ulRender(). It is cheap enough to be invisible at typical frame rates, and letting the library drive it on this timer is the recommended approach.

Set to 0 to disable the automatic recycler entirely, for applications that prefer to call ulRecycle() on their own schedule.

(Default = 0.5)

◆ ulConfigSetResourcePathPrefix()

void ulConfigSetResourcePathPrefix	(	ULConfig	config,
		ULString	resource_path_prefix )

The relative path to the resources folder (loaded via the FileSystem API).

The library loads certain resources (SSL certs, ICU data, etc.) from the FileSystem API during runtime (eg, file:///resources/cacert.pem).

You can customize the relative file path to the resources folder by modifying this setting.

(Default = "resources/")

◆ ulConfigSetResourceSampleInterval()

void ulConfigSetResourceSampleInterval	(	ULConfig	config,
		unsigned int	interval_ms )

The interval (in milliseconds) at which the library samples and emits resource counters (memory usage, VRAM, cache sizes, etc.) via the Profiler's EmitCounter() callback.

Set to 0 to disable resource counter sampling entirely; scopes and events are unaffected.

(Default = 500)

◆ ulConfigSetUserStylesheet()

void ulConfigSetUserStylesheet	(	ULConfig	config,
		ULString	css_string )

Global user-defined CSS string (included before any CSS on the page).

You can use this to override default styles for various elements on the page.

Note: This is an actual string of CSS, not a file path.

◆ ulConfigSetUseSystemCertificateStore()

void ulConfigSetUseSystemCertificateStore	(	ULConfig	config,
		bool	enabled )

Whether to validate TLS server certificates against the operating system's certificate store instead of the certificate bundle shipped with the application (resources/cacert.pem).

When true, certificates trusted by the host operating system (including enterprise or user-installed roots) are honored and the bundled list is not used.

Currently honored on Windows. On platforms where the OS trust store is not yet supported, this option is ignored and the bundled list is used.

(Default = false)

◆ ulCreateConfig()

ULConfig ulCreateConfig ( void )

Create config with default values (see <Ultralight/platform/Config.h>).

Returns: Returns a new ULConfig instance. You must call ulDestroyConfig() when finished.

◆ ulDestroyConfig()

void ulDestroyConfig ( ULConfig config )

Destroy a ULConfig instance created by ulCreateConfig().

Parameters

config The config to destroy (can be NULL).

Enumeration Type Documentation

◆ ULDiagnosticsLevel

enum ULDiagnosticsLevel

How much checking and warning the library does for mistakes made through one of its APIs.

Warnings go to the Logger at kLogLevel_Warning, tagged with the API they came from (eg, [js], [dom], [data]), and to the page's console when a page is involved.

See also: ulConfigSetJavaScriptDiagnostics(), ulConfigSetDOMDiagnostics()

Enumerator
kULDiagnosticsLevel_Off	No per-operation warnings (a mistake the library only finds once, like an invalid setup call, still warns).
kULDiagnosticsLevel_Warn	Development warnings about each mistake as it happens.
kULDiagnosticsLevel_Strict	Everything kULDiagnosticsLevel_Warn reports, plus stricter checks (eg, a lossy argument conversion in a JavaScript binding becomes a TypeError, and every DOM call on a NULL handle warns).
kULDiagnosticsLevel_Auto	Warn when developer mode is on, Off when it's off (see ulConfigSetDeveloperMode()).

Go to the source code of this file.

Overview

Functions

Enumerations

Function Documentation

◆ ulConfigSetBitmapAlignment()

◆ ulConfigSetCachePath()

◆ ulConfigSetDeveloperMode()

◆ ulConfigSetDOMDiagnostics()

◆ ulConfigSetEffectQuality()

◆ ulConfigSetEnablePhoton()

◆ ulConfigSetEnablePhotonText()

◆ ulConfigSetFaceWinding()

◆ ulConfigSetFontBlendMode()

◆ ulConfigSetFontContrast()

◆ ulConfigSetFontEmbolden()

◆ ulConfigSetFontGamma()

◆ ulConfigSetFontHinting()

◆ ulConfigSetFontProfile()

◆ ulConfigSetFontStemDarkening()

◆ ulConfigSetForceRepaint()

◆ ulConfigSetIdleGCEnabled()

◆ ulConfigSetIdleGCIdleTime()

◆ ulConfigSetIgnoreSSLErrors()

◆ ulConfigSetJavaScriptDiagnostics()

◆ ulConfigSetMaxHeapSize()

◆ ulConfigSetMaxUpdateTime()

◆ ulConfigSetMediaProfile()

◆ ulConfigSetMemoryCacheSize()

◆ ulConfigSetMemoryProfile()

◆ ulConfigSetMinLargeHeapSize()

◆ ulConfigSetMinLogLevel()

◆ ulConfigSetMinSmallHeapSize()

◆ ulConfigSetNumRendererThreads()

◆ ulConfigSetOverrideRAMSize()

◆ ulConfigSetPageCacheSize()

◆ ulConfigSetPageSettleCycles()

◆ ulConfigSetPageSettleDelay()

◆ ulConfigSetPageSettleTick()

◆ ulConfigSetPaintFullLayers()

◆ ulConfigSetPhotonTextMinPx()

◆ ulConfigSetRecycleDelay()

◆ ulConfigSetResourcePathPrefix()

◆ ulConfigSetResourceSampleInterval()

◆ ulConfigSetUserStylesheet()

◆ ulConfigSetUseSystemCertificateStore()

◆ ulCreateConfig()

◆ ulDestroyConfig()

Enumeration Type Documentation

◆ ULDiagnosticsLevel