使用新位图修改 CreateToolbarEx 函数时的内存分配问题

发布于 2024-10-26 02:35:04 字数 461 浏览 0 评论 0原文

我正在尝试修改一些使用 CreateToolbarEx 函数的旧代码（c++），试图使用新的位图并将我们的 24x24 像素工具栏按钮替换为更华丽的 36x36 按钮。我正在使用的函数如下：

m_hToolbarWnd = CreateToolbarEx(m_hPagerWnd, ws, ID_TOOLBAR, NUMBERTOOLBARBITMAPS, hInst, IDB_TOOLBAR, tbInitButtons, m_ncButtons, 24, 24, 24, 24, sizeof(TBBUTTON));

我可以通过将“24”更改为“36”来扩展当前工具栏按钮的大小，但是如果我将 IDB_TOOLBAR 更改为新的工具栏位图并运行程序，我会遇到指向 CreateToolbarEx 函数的内存访问读取冲突。我是否遗漏了有关位图如何获取内存分配或创建单个按钮的信息？新工具栏的尺寸为 1584x36 像素（44 个按钮）。

原文

I'm trying to modify some old code (c++) that uses the CreateToolbarEx function, in an attempt to use a new bitmap and replace our 24x24 pixel toolbar buttons with flashier 36x36 ones. The function I'm using is as follows:

m_hToolbarWnd = CreateToolbarEx(m_hPagerWnd, ws, ID_TOOLBAR, NUMBERTOOLBARBITMAPS, hInst, IDB_TOOLBAR, tbInitButtons, m_ncButtons, 24, 24, 24, 24, sizeof(TBBUTTON));

I'm able to expand the size of the current toolbar buttons by changing the '24's to '36', but if I change IDB_TOOLBAR to the new toolbar bitmap and run the program I hit a memory access read violation pointing to the CreateToolbarEx function. Am I missing something on how the bitmap is getting its memory allocation or creating the individual buttons? The new toolbar is 1584x36 pixels (44 buttons).

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碍人泪离人颜 2024-11-02 02:35:04

这是旧的，但希望我找到的解决方案能够帮助别人。我忽略了一个事实，即我正在从 16 位颜色位图更改为 24 位，而我无法让 CreateToolbarEx 来处理这一点。相反，我必须调用 CreateWindowEx 并为其创建和设置图标 ImageList。工作代码：

m_hToolbarWnd = CreateWindowEx(0L, TOOLBARCLASSNAME, "", ws, 36, 36, 36, 36, m_hPagerWnd, (HMENU) ID_TOOLBAR, hInst, NULL);
SendMessage(m_hToolbarWnd, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
HBITMAP hBmp = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_TOOLBAR));
HIMAGELIST hIcons = ImageList_Create(36, 36, ILC_COLOR24, 0, m_ncButtons);
ImageList_Add(hIcons, hBmp, NULL);
SendMessage(m_hToolbarWnd, TB_SETIMAGELIST, 0, (LPARAM) hIcons);

This is old, but hopefully the solution I found will help someone. I had overlooked the fact that I was changing from a 16-bit color bitmap to 24-bit, which I was unable to get CreateToolbarEx to handle. Instead, I had to call CreateWindowEx and create and set the icon ImageList for it. Working code:

m_hToolbarWnd = CreateWindowEx(0L, TOOLBARCLASSNAME, "", ws, 36, 36, 36, 36, m_hPagerWnd, (HMENU) ID_TOOLBAR, hInst, NULL);
SendMessage(m_hToolbarWnd, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
HBITMAP hBmp = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_TOOLBAR));
HIMAGELIST hIcons = ImageList_Create(36, 36, ILC_COLOR24, 0, m_ncButtons);
ImageList_Add(hIcons, hBmp, NULL);
SendMessage(m_hToolbarWnd, TB_SETIMAGELIST, 0, (LPARAM) hIcons);

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