MaskBlt function

In unit LCLIntf

Copies part of an source DC into an destination DC, using the specified foreground and background raster operations.

Declaration

pascal

function MaskBlt(DestDC: HDC; X: Integer; Y: Integer; Width: Integer; 
 Height: Integer; SrcDC: HDC; XSrc: Integer; 
 YSrc: Integer; Mask: HBITMAP; XMask: Integer; 
 YMask: Integer; Rop: DWORD): Boolean

Description

MaskBlt behaves like BitBlt when no mask bitmap is specified. It does a SRCOPY operation when also no ROP is specified. See BitBlt for general information about raster operations.

Rop contains both a foreground and a background raster operation (see MakeROP4). When a (monochrome) mask bitmap is present, its bits select either the foreground (1) or background (0) raster operation.

MaskBlt function

Declaration

Description

See also