The MSG structure contains message information from a thread's message queue.
MSG Structure definition:
typedef struct tagMSG { HWND hwnd; UINT message; WPARAM wParam; LPARAM lParam; DWORD time; POINT pt; } MSG;
Members and their description:
- hwnd - Handle to the window whose window procedure receives the message.
- message - Specifies the message number.
- wParam - Specifies additional information about the message. The exact meaning depends on the value of the message member.
- lParam - Specifies additional information about the message. The exact meaning depends on the value of the message member.
- time - Specifies the time at which the message was posted.
- pt -Specifies the cursor position, in screen coordinates, when the message was posted.
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Further readings
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