API -> AlphaBlend [ Library : msimg32.dll, Category : Bitmap ] [C#, VB, VB.net]

AlphaBlend

Library : msimg32.dll Category : Bitmap

Api Example(s)
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Alpha DIBSections
How to use AlphaBlend function to display transparent or semitransparent images ?

API Description :

The AlphaBlend function displays bitmaps that have transparent or semitransparent pixels.

VB Declaration :

Show Multiline Public Private

Declare Function AlphaBlend Lib "msimg32.dll" (ByVal hdc As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal hdc As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal BLENDFUNCT As Long) As Long

Parameters :

· hdcDest
[in] Handle to the destination device context.

· nXOriginDest
[in] Specifies the x-coordinate, in logical units, of the upper-left corner of the destination rectangle.

· nYOriginDest
[in] Specifies the y-coordinate, in logical units, of

Return :

If the function succeeds, the return value is TRUE.
If the function fails, the return value is FALSE. 

Windows NT/ 2000: To get extended error information, call GetLastError. This can return the following value.
ERROR_INVALID_PARAMETER One or more of

OS Requirement :

Requires Windows 2000 or later
Requires Windows 98 or later

Dotnet Replacement :

System.Drawing.Graphics.DrawImage