Sent after a window has been moved.
A window receives this message through its WindowProc function.
This parameter is not used.
The x and y coordinates of the upper-left corner of the client area of the window. The low-order word contains the x-coordinate while the high-order word contains the y coordinate.
If an application processes this message, it should return zero.
The parameters are given in screen coordinates for overlapped and pop-up windows and in parent-client coordinates for child windows.
The following example demonstrates how to obtain the position from the lParam parameter.
xPos = (int)(short) LOWORD(lParam); // horizontal position yPos = (int)(short) HIWORD(lParam); // vertical position
Minimum supported client
|Windows 2000 Professional [desktop apps only]|
Minimum supported server
|Windows 2000 Server [desktop apps only]|