xref: /aoo41x/main/vcl/os2/howto.txt (revision 0bdb6530)
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21cdf0e10cSrcweir
22cdf0e10cSrcweirVCL positioning
23cdf0e10cSrcweir
24cdf0e10cSrcweirWindow coordinates are parent relative, with exception of maState fields, they
25cdf0e10cSrcweirhave screen coordinates.
26cdf0e10cSrcweir
27cdf0e10cSrcweirEvery window has a parent window, usually the client area of an existing window,
28cdf0e10cSrcweirotherwise the desktop window.
29cdf0e10cSrcweir
30cdf0e10cSrcweirWhen a window is to be sized/moved, SetPosSize is called.
31cdf0e10cSrcweirSince coordinates are the position/size of client area, we need to calculate
32cdf0e10cSrcweircurrent window frame size/position and map to screen coordinates using the
33cdf0e10cSrcweirowner window position as offset.
34