The WM_LBUTTONDBLCLK message is posted when the user double-clicks the left mouse button while the cursor is in the client area of a window. If the mouse is not captured, the message is posted to the window beneath the cursor. Otherwise, the message is posted to the window that has captured the mouse.
WM_LBUTTONDBLCLK fwKeys = wParam; // key flags xPos = LOWORD(lParam); // horizontal position of cursor yPos = HIWORD(lParam); // vertical position of cursor
Value |
Description |
MK_CONTROL |
Set if the CTRL key is down. |
MK_LBUTTON |
Set if the left mouse button is down. |
MK_MBUTTON |
Set if the middle mouse button is down. |
MK_RBUTTON |
Set if the right mouse button is down. |
MK_SHIFT |
Set if the SHIFT key is down. |
If an application processes this message, it should return zero.
Only windows that have the CS_DBLCLKS style can receive WM_LBUTTONDBLCLK messages, which Windows generates whenever the user presses, releases, and again presses the left mouse button within the system’s double-click time limit. Double-clicking the left mouse button actually generates four messages: WM_LBUTTONDOWN, WM_LBUTTONUP, WM_LBUTTONDBLCLK, and WM_LBUTTONUP again.
An application can use the MAKEPOINTS macro to convert the lParam parameter to a POINTS structure.
GetCapture, GetDoubleClickTime, MAKEPOINTS, POINTS, SetCapture, SetDoubleClickTime, WM_LBUTTONDOWN, WM_LBUTTONUP
file: /Techref/os/win/api/win32/mess/src/msg25_5.htm, 3KB, , updated: 2000/4/7 12:20, local time: 2024/8/23 05:49,
18.222.113.153:LOG IN
|
©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions? <A HREF="http://piclist.com/tecHREF/os/win/api/win32/mess/src/msg25_5.htm"> WM_LBUTTONDBLCLK</A> |
Did you find what you needed? |
![]() o List host: MIT, Site host massmind.org, Top posters @none found - Page Editors: James Newton, David Cary, and YOU! * Roman Black of Black Robotics donates from sales of Linistep stepper controller kits. * Ashley Roll of Digital Nemesis donates from sales of RCL-1 RS232 to TTL converters. * Monthly Subscribers: Gregg Rew. on-going support is MOST appreciated! * Contributors: Richard Seriani, Sr. |
Ashley Roll has put together a really nice little unit here. Leave off the MAX232 and keep these handy for the few times you need true RS232! |
.