Associates a new large or small icon with a window. The system displays the large icon in the ALT+TAB dialog box, and the small icon in the window caption.
The type of icon to be set. This parameter can be one of the following values.
Set the large icon for the window.
Set the small icon for the window.
A handle to the new large or small icon. If this parameter is NULL, the icon indicated by wParamis removed.
The return value is a handle to the previous large or small icon, depending on the value of wParam. It is NULL if the window previously had no icon of the type indicated by wParam.
The DefWindowProc function returns a handle to the previous large or small icon associated with the window, depending on the value of wParam.
Minimum supported client
|Windows 2000 Professional [desktop apps only]|
Minimum supported server
|Windows 2000 Server [desktop apps only]|
Build date: 2/25/2013