WM_CTLCOLORSCROLLBAR消息 Microsoft Learn Challenge Nov 23, 2024 – Jan 10, 2025 立即注册 消除警报 Learn 登录 Windows 应用开发 探究 开发 平台 故障排除 资源 仪表板 此主题的部分內容可能由机器或 AI 翻译。 消除警报 搜索 Windows 控件 关于常用控件...
对于创建的,要记得释放。 2.WM_CTLCOLORSCROLLBAR不跨线程。 只在本线程发送。 3. 返回的画刷需要强制转换为(INT_PTR) 4.WM_CTLCOLORSCROLLBAR只用在 滚动条是 自控件的情况下, 对于滚动条attached to window的情况没有这个消息。
WM_CTLCOLORSCROLLBAR (Windows CE 5.0)發行項 2012/09/14 Send FeedbackThis message is sent to the parent window of a scroll bar control when the control is about to be drawn. By responding to this message, the parent window can use the specified display context handle to set the back...
WM_CTLCOLORSCROLLBAR hdcSB = (HDC) wParam; hwndSB = (HWND) lParam; Parameters hdcSB Handle to the device context for the scroll bar control. hwndSB Handle to the scroll bar. Return Value If an application processes this message, it must return the handle to a brush. The system uses ...
当控件即将绘制时, 会将WM_CTLCOLORSCROLLBAR 消息发送到滚动条控件的父窗口。 通过响应此消息,父窗口可以使用显示上下文句柄设置滚动条控件的背景色。窗口通过其 WindowProc 函数接收此消息。C++ 复制 WM_CTLCOLORSCROLLBAR WPARAM wParam LPARAM lParam;
当控件即将绘制时, 会将WM_CTLCOLORSCROLLBAR 消息发送到滚动条控件的父窗口。 通过响应此消息,父窗口可以使用显示上下文句柄设置滚动条控件的背景色。窗口通过其 WindowProc 函数接收此消息。C++ 复制 WM_CTLCOLORSCROLLBAR WPARAM wParam LPARAM lParam;
WM_CTLCOLORSCROLLBARhdcSB = (HDC)wParam;hwndSB = (HWND)lParam; ParametershdcSB Handle to the device context for the scroll bar control. hwndSB Handle to the scroll bar.Return ValuesIf an application processes this message, it must return the handle to a brush. The system uses the brush ...
WM_CTLCOLORSCROLLBARhdcSB = (HDC)wParam;hwndSB = (HWND)lParam; Parameters hdcSB Handle to the device context for the scroll bar control. hwndSB Handle to the scroll bar. Return Values If an application processes this message, it must return the handle to a brush. The system uses the br...
The WM_CTLCOLORSCROLLBAR message is sent to the parent window of a scroll bar control when the control is about to be drawn. By responding to this message, the parent window can use the display context handle to set the background color of the scroll bar control....
Scroll Bar Functions Scroll Bar Macros Scroll Bar Messages Scroll Bar Notifications Scroll Bar Notifications WM_CTLCOLORSCROLLBAR WM_HSCROLL WM_VSCROLL Scroll Bar Structures Scroll Bar Constants Static Control Status Bar SysLink Tab Task Dialog Toolbar Tooltip Trackbar Tree View Up-Down Control General...