通过

如何创建状态栏

  • 项目

可以通过使用 CreateStatusWindow 函数或使用 CreateWindowEx 函数并指定 STATUSCLASSNAME 窗口类来创建状态栏。

创建状态栏后，可以将其分为各个部分，为每个部分设置文本，并使用状态栏消息控制窗口的外观。

注意

若要确保加载公共控件 DLL，请先使用 InitCommonControls 函数。

 

需要了解的事项

技术

先决条件

  • C/C++
  • Windows 用户界面编程

说明

创建状态栏

以下示例演示如何创建一个状态栏，该状态栏具有大小调整手柄，并根据父窗口工作区的宽度将窗口分为四个相等的部分。

// Description: 
//   Creates a status bar and divides it into the specified number of parts.
// Parameters:
//   hwndParent - parent window for the status bar.
//   idStatus - child window identifier of the status bar.
//   hinst - handle to the application instance.
//   cParts - number of parts into which to divide the status bar.
// Returns:
//   The handle to the status bar.
//
HWND DoCreateStatusBar(HWND hwndParent, int idStatus, HINSTANCE
                      hinst, int cParts)
{
    HWND hwndStatus;
    RECT rcClient;
    HLOCAL hloc;
    PINT paParts;
    int i, nWidth;

    // Ensure that the common control DLL is loaded.
    InitCommonControls();

    // Create the status bar.
    hwndStatus = CreateWindowEx(
        0,                       // no extended styles
        STATUSCLASSNAME,         // name of status bar class
        (PCTSTR) NULL,           // no text when first created
        SBARS_SIZEGRIP |         // includes a sizing grip
        WS_CHILD | WS_VISIBLE,   // creates a visible child window
        0, 0, 0, 0,              // ignores size and position
        hwndParent,              // handle to parent window
        (HMENU) idStatus,       // child window identifier
        hinst,                   // handle to application instance
        NULL);                   // no window creation data

    // Get the coordinates of the parent window's client area.
    GetClientRect(hwndParent, &rcClient);

    // Allocate an array for holding the right edge coordinates.
    hloc = LocalAlloc(LHND, sizeof(int) * cParts);
    paParts = (PINT) LocalLock(hloc);

    // Calculate the right edge coordinate for each part, and
    // copy the coordinates to the array.
    nWidth = rcClient.right / cParts;
    int rightEdge = nWidth;
    for (i = 0; i < cParts; i++) { 
       paParts[i] = rightEdge;
       rightEdge += nWidth;
    }

    // Tell the status bar to create the window parts.
    SendMessage(hwndStatus, SB_SETPARTS, (WPARAM) cParts, (LPARAM)
               paParts);

    // Free the array, and return.
    LocalUnlock(hloc);
    LocalFree(hloc);
    return hwndStatus;
}

使用状态栏

Windows 通用控件演示 (CppWindowsCommonControls)