Question

我正在通过创建自定义Windows应用程序来学习C ++和Winapi;因为我希望能够给出我自己的外观我摆脱了非客户区域，我自己定义所有边框和标题栏相关的操作。控件在此测试示例中按预期工作，但它始终出现在我窗口的最左上角（仅限整个客户区）并占据整个宽度（因此也覆盖了我的MIN / MAX / CLOSE按钮）

如何使用我想要的宽度将Rebar菜单放入客户区的自定义位置，而不是自动整个窗口宽度？

我正在将Rebar控件（在单独的文件中）子类化为：

#include "stdafx.h"
#include <windows.h>
#include <commctrl.h>
#include "TitleMenu.h"

TitleMenu::TitleMenu ()
{
    /* Vars to take over params passed into class from main window */
    posX = NULL; // Position of control
    posY = NULL; // Position of control
    width = 0; // Width of control
    height = 0; // Height of control
    /* Control related variables */
    titleMenu = NULL; // Handle to control created as point of this class
    titleMenuToolbar = NULL; // Handle to control's toolbar
}

TitleMenu::~TitleMenu ()
{
    if ( titleMenu )
        DestroyWindow ( titleMenu );
}

TitleMenu* TitleMenu::CreateTitleMenu ( HWND hwnd, int posX, int posY, int width, int height )
// The purpose of this function is to create control and provide pointer to it; rebar control is used
{
    TitleMenu* p_titleMenu = new TitleMenu; // Control pointer

    p_titleMenu->titleMenu = CreateWindowEx ( 0, REBARCLASSNAME, 0, WS_CHILD | WS_VISIBLE, posX, posY, width, height, hwnd, 0, (HINSTANCE)GetWindowLong ( hwnd, GWL_HINSTANCE ), p_titleMenu );
    if ( p_titleMenu->titleMenu == NULL )
    {
        delete p_titleMenu;
        MessageBox ( NULL, L"Problem creating the Menu.", L"Error", 0 );
        return 0;
    }

    p_titleMenu->titleMenuToolbar = CreateWindowEx ( 0, TOOLBARCLASSNAME, NULL, WS_CHILD | WS_VISIBLE | TBSTYLE_FLAT | TBSTYLE_TRANSPARENT, posX, posY, width, height, p_titleMenu->titleMenu, 0, (HINSTANCE)GetWindowLong ( p_titleMenu->titleMenu, GWL_HINSTANCE ), NULL );
    if ( p_titleMenu->titleMenuToolbar == NULL )
    {
        MessageBox ( NULL, L"Error creating Menu toolbar.", L"Error", 0 );
    }

    /* Create test buttons for Rebar control */
    SendMessage ( p_titleMenu->titleMenuToolbar, TB_BUTTONSTRUCTSIZE, (WPARAM)sizeof ( TBBUTTON ), 0 );
        TBBUTTON tbb [ 3 ] =
    {
        { I_IMAGENONE, 0, TBSTATE_ENABLED, TBSTYLE_LIST },
        { I_IMAGENONE, 1, TBSTATE_ENABLED, TBSTYLE_LIST },
        { I_IMAGENONE, 2, TBSTATE_ENABLED, TBSTYLE_LIST },
    };
    SendMessage ( p_titleMenu->titleMenuToolbar, (UINT)TB_ADDBUTTONS, 3, (LPARAM)&tbb );

    /* Define band info */
    REBARBANDINFO rbBand;
    rbBand.cbSize = REBARBANDINFO_V3_SIZE;
    rbBand.fMask = RBBIM_STYLE | RBBIM_TEXT | RBBIM_CHILD | RBBIM_CHILDSIZE | RBBIM_SIZE | RBBIM_COLORS;
    rbBand.fStyle = RBBS_FIXEDSIZE | RBBS_HIDETITLE;

    // Get the height of the buttons to be used in toolbar
    DWORD dwBtnSize = (DWORD)SendMessage ( p_titleMenu->titleMenuToolbar, TB_GETBUTTONSIZE, 0, 0 );

    rbBand.cx = 300;
    rbBand.clrFore = RGB ( 233, 233, 233 );
    rbBand.clrBack = RGB ( 18, 18, 18 );
    rbBand.lpText = TEXT ( "" );
    rbBand.hwndChild = p_titleMenu->titleMenuToolbar;
    rbBand.cyChild = LOWORD ( dwBtnSize );
    rbBand.cyMinChild = LOWORD ( dwBtnSize );
    rbBand.cyMaxChild = LOWORD ( dwBtnSize );
    rbBand.cxMinChild = 3 * HIWORD ( dwBtnSize );
    rbBand.cyIntegral = 0;
    rbBand.cxIdeal = 300;
    SendMessage ( p_titleMenu->titleMenu, RB_INSERTBAND, (WPARAM)-1, (LPARAM)&rbBand );

    return p_titleMenu;
}

我通过.cx并使用RBBIM_SIZE来定义所需宽度，但这似乎没有任何效果。

我也试过这样发送RB_SIZETORECT但没有成功：

RECT rc;
rc.top = 30;
rc.bottom = 60;
rc.left = 0;
rc.right = 300;
SendMessage ( p_titleMenu->titleMenu, RB_SIZETORECT, 0, (LPARAM)&rc );

消息RB_SETBANDWIDTH也没有给出结果（来自MSDN describtion我不知道如何使用wParam参数。）

SendMessage ( p_titleMenu->titleMenu, RB_SETBANDWIDTH, 0, 300 );

我找不到与此特定问题相关的任何其他信息，所以我在这里问。谢谢！

如何在客户区使用时设置钢筋控制的位置和大小？

0 个答案: