SurfaceTransparentZone property

Remarks

The zone affected by alpha channel transparency when a special effect is applied

Notes: This property is useful only if a special effect has been applied through the SpecialEffect property.

Supported values are the following (The examples on this page are from Raised buttons):

Mnemonic constant	Value	Meaning
TRANSP_ZONE_WHOLE	0 (default)	The whole button surface is affected by transparency
TRANSP_ZONE_OUTSIDE	1	Only the external part of the special effect is affected by transparency
TRANSP_ZONE_INSIDE	2	Only the internal part of the special effect is affected by transparency

Further information about alpha channel transparency management can be found inside the How to manage alpha channel transparency section.

Get / Set functions

short abmGetSurfaceTransparentZone (

HWND hWndBtn

);

void abmSetSurfaceTransparentZone (

HWND hWndBtn,

short nZone

);

Parameters	Description
hWndBtn	Windows handle associated to the button.
nZone	Specifies the zone affected by transparency.

Container function

short abmContainerSetting (

HWND hWndContainer,

short nSetting,

long newValue

);

Parameters	Description
hWndContainer	Windows handle associated to the button container.
nSetting	Must be set to SET_SURFACE_TRANSP_ZONE
newValue	Same meaning of the nZone parameter described before