Implementation of shaped windows on Windows Mobile

Source: Internet
Author: User
Tags transparent color

Commonly used software on PC, such as sogou input method and Kingsoft word overlord, uses some special-shaped windows for skin display.

 

 

 

Similar effects can also be achieved on Windows Mobile

 

 

 

In the implementation process, more important functions include createrectrgn, combinergn, and setw.wrgn. For an image, specify a transparent color. You can use the pixel Method to combine region. You can use getpixel to obtain the pixel value for the HDC handle or analyze the bitmap structure. You can optimize the combinergn process during row-by-row or column-by-column scanning. After setmediawrgn, the window displays only the background of the region part. Other regions are transparent, and even the mouse operation can penetrate.

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