我已经使用 win32 api 创建了一个 ListView 。
InitCommonControls();
HWND hwndList1 = CreateWindow(WC_LISTVIEW , L"", WS_VISIBLE|WS_CHILD | LVS_REPORT | LVS_EDITLABELS | LVS_ICON | LV_VIEW_TILE | LVS_EX_GRIDLINES | WS_BORDER | LVS_EX_FULLROWSELECT | ES_LEFT , 10, 10, 300, 190, hwnd, NULL, GetModuleHandle(NULL), 0);
SendMessageW( hwndList1,
LVM_SETEXTENDEDLISTVIEWSTYLE,
LVS_EX_FULLROWSELECT ,
LVS_EX_FULLROWSELECT );
CreateItem(hwndList1 , (char*)L"fault RS458");
CreateItem(hwndList1 , (char*)L"fault RS455");
CreateColumn(hwndList1 , 0 , (char*)L"Insert column" , 300);
我看到 ListView 周围有黑色边框。我怎样才能改变它的颜色?
最佳答案
您可以使用 SetWindowSubclass 对窗口进行子类化(需要 comctl32.lib)和句柄 WM_NCPAINT
绘制控件的非客户区如下:
#include <Windows.h>
#include <CommCtrl.h>
LRESULT CALLBACK ListViewProc(HWND hwnd,
UINT msg, WPARAM wp, LPARAM lp, UINT_PTR, DWORD_PTR)
{
switch(msg)
{
case WM_NCPAINT:
{
RECT rc;
GetWindowRect(hwnd, &rc);
OffsetRect(&rc, -rc.left, -rc.top);
auto hdc = GetWindowDC(hwnd);
auto hpen = CreatePen(PS_SOLID, 1, RGB(255, 0, 0));
auto oldpen = SelectObject(hdc, hpen);
SelectObject(hdc, GetStockObject(NULL_BRUSH));
Rectangle(hdc, rc.left, rc.top, rc.right, rc.bottom);//draw red frame
SelectObject(hdc, oldpen);
DeleteObject(oldpen);
ReleaseDC(hwnd, hdc);
//*** EDIT
//documentation says we should return 0
//but that causes problem with vertical scrollbar
//maybe we should break for this subclass case
break; //not return 0!
}
case WM_NCDESTROY:
RemoveWindowSubclass(hwnd, ListViewProc, 0);
break;
}
return DefSubclassProc(hwnd, msg, wp, lp);
}
...
HWND hwndList1 = CreateWindow(...);
SetWindowSubclass(hwndList1, ListViewProc, 0, NULL);
<子>
旁注,(char*)L"text"
没有意义。使用 ANSI((char*)"text"
)或 Unicode((wchar_t*)L"text"
,推荐)。您可以更改 CreateItem
以接受 const wchar_t*
,然后在最后为 LVITEM
转换为 (wchar_t*)
避免错误的步骤。
编辑
WM_NCPAINT
会中断,不会返回零。
关于c++ - 如何更改 ListView 的边框颜色,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/57537823/