windows_programming_notes.nbk: Home | Index | Next Page: WM_NCRBUTTONDOWN | Previous Page: WM_NCPAINT
The WM_NCRBUTTONDBLCLK message is posted when the user double-clicks the right mouse button while the cursor is within the nonclient area of a window. This message is posted to the window that contains the cursor. If a window has captured the mouse, this message is not posted.
A window receives this message through its WindowProc function.
LRESULT CALLBACK WindowProc( HWND hwnd, // handle to window UINT uMsg, // WM_NCRBUTTONDBLCLK WPARAM wParam, // hit-test value LPARAM lParam // cursor position );
If an application processes this message, it should return zero.
A window need not have the CS_DBLCLKS style to receive WM_NCRBUTTONDBLCLK messages.
The system generates a WM_NCRBUTTONDBLCLK message when the user presses, releases, and again presses the right mouse button within the system's double-click time limit. Double-clicking the right mouse button actually generates four messages: WM_NCRBUTTONDOWN, WM_NCRBUTTONUP, WM_NCRBUTTONDBLCLK, and WM_NCRBUTTONUP again.
You can also use the GET_X_LPARAM and GET_Y_LPARAM macros to extract the values of the x- and y- coordinates from lParam.
If it is appropriate to do so, the system sends the WM_SYSCOMMAND message to the window.
Windows NT/2000 or later: Requires Windows NT 3.1 or later. Windows 95/98/Me: Requires Windows 95 or later. Header: Declared in Winuser.h; include Windows.h.
windows_programming_notes.nbk: Home | Index | Next Page: WM_NCRBUTTONDOWN | Previous Page: WM_NCPAINT
Notebook exported on Monday, 7 July 2008, 18:56:50 PM Eastern Daylight Time