MaskBitmap property (Main Control)
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Builder Syntax |
TBitmapHandle MaskBitmap; |
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Delphi Syntax |
MaskBitmap: TBitmapHandle; |
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Overview |
Refer to Creating and Using a Bitmap Region. |
Remarks
Gets or sets the mask bitmap.
This property is updated by the CreateMaskFromRgn method.
The mask bitmap will be updated with a 1-bit, black-and-white image after calling the CreateMaskFromBitmapRgn method, where pixels from the region are white, and all others are black.
The user can also directly assign a bitmap to this property, but the bitmap must be a 1-bit mask image.
The image in this property is used by the SetRgnFromMask method to create or modify a region in the Bitmap property.
Therefore, before calling SetRgnFromMask The MaskBitmap property must contain the mask bitmap to be used by this method.
See Also
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Elements: |
CreateMaskFromBitmapRgn method, SetRgnFromMask method, SetRgnEllipse method, SetRgnRect method, SetRgnRoundRect method, PolygonSize property, OffsetRgn method, SetRgnColor method. |
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Topics: |