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分享MFC Edit重绘后，设置password属性受影响
Edit重绘后，设置password属性，可以把输入密码显示为“*”，但如果用鼠标选中输入的密码，然后点击其他控件如Edit或者是Button，密码就会显示为明文，再把鼠标点击设置为password的edit，又会变为***
有没有大神遇到过呢，听说是在重绘的时候需要设置一下属性，但我一直没查到是怎么设置的，求解
另外，我重绘的combobox，设置为Drop List格式之后，不能再使用SetCurSel（x）来设置默认选项了，否则就会出错崩溃，应该也是因为重绘的问题
有没有大神遇到过呢，听说是在重绘的时候需要设置一下属性，但我一直没查到是怎么设置的，求解
另外，我重绘的combobox，设置为Drop List格式之后，不能再使用SetCurSel（x）来设置默认选项了，否则就会出错崩溃，应该也是因为重绘的问题
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tsmaomaoyu 2015-06-12
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设置dropdown和droplist是有哪些区别呢？上面的代码，设置为droplist除了设置默认选项外，其他功能都很好；设置为dropdown的话，可以设置默认选项了，但是，鼠标滑动的时候就没有我设置好的高亮显示了[/quote]
鼠标划过的高亮可以参考这个帖子。
http://blog.csdn.net/visualeleven/article/details/6622248[/quote]
用帖子的方法试过了，这个也是设置为dropdown的话可以高亮，设置为droplist就不行了
风若飞 2015-06-11
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设置dropdown和droplist是有哪些区别呢？上面的代码，设置为droplist除了设置默认选项外，其他功能都很好；设置为dropdown的话，可以设置默认选项了，但是，鼠标滑动的时候就没有我设置好的高亮显示了[/quote]
鼠标划过的高亮可以参考这个帖子。
http://blog.csdn.net/visualeleven/article/details/6622248
tsmaomaoyu 2015-06-10
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设置dropdown和droplist是有哪些区别呢？上面的代码，设置为droplist除了设置默认选项外，其他功能都很好；设置为dropdown的话，可以设置默认选项了，但是，鼠标滑动的时候就没有我设置好的高亮显示了
tsmaomaoyu 2015-06-10
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第一次做项目，对于什么都是两把刀，我刚才自己搜资料也没有搜到，大神能不能给个参考代码呢
tsmaomaoyu 2015-06-10
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#include "stdafx.h"
#include "TEST.h"
#include "McomboBox.h"
int nListBoxTextLeft = 0;
static WNDPROC m_pWndProc = 0;
extern "C" LRESULT FAR PASCAL BitComboBoxListBoxProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
{
//TRACE("BitComboBoxListBoxProc 0x%.4X\n",nMsg);
return CallWindowProc(m_pWndProc, hWnd, nMsg, wParam, lParam);
}
McomboBox::McomboBox()
{
m_nIDLeft = m_nIDRight = m_nIDCenter = 0;
m_nIDListLeft, m_nIDListRight, m_nIDListTop, m_nIDListBot = 0;
}
McomboBox::~McomboBox()
{
}
BEGIN_MESSAGE_MAP(McomboBox, CComboBox)
//{{AFX_MSG_MAP(CBitComboBox)
ON_WM_PAINT()
ON_WM_DESTROY()
ON_WM_ERASEBKGND()
ON_WM_SETFOCUS()
//}}AFX_MSG_MAP
ON_MESSAGE(WM_CTLCOLORLISTBOX, OnCtlColorListBox)
END_MESSAGE_MAP()
LRESULT McomboBox::OnCtlColorListBox(WPARAM wParam, LPARAM lParam)
{
// Here we need to get a reference to the listbox of the combobox
// (the dropdown part). We can do it using
//TRACE("OnCtlColorListBox()\n");
if (this->m_listbox.m_hWnd == 0) {
HWND hWnd = (HWND)lParam;
if (hWnd != 0 && hWnd != m_hWnd)
{
// Save the handle
m_listbox.m_hWnd = hWnd;
// Subclass ListBox
m_pWndProc = (WNDPROC)GetWindowLong(m_listbox.m_hWnd, GWL_WNDPROC);
SetWindowLong(m_listbox.m_hWnd, GWL_WNDPROC, (LONG)BitComboBoxListBoxProc);
}
}
return DefWindowProc(WM_CTLCOLORLISTBOX, wParam, lParam);
}
#define SET_ZERO(X) memset((void *)&X,0,sizeof(X));
void McomboBox::OnPaint()
{
CPaintDC dc(this); // device context for painting
RECT rc;
CDC MemDC;
GetClientRect(&rc);
MemDC.CreateCompatibleDC(&dc);
CBitmap bmpComboRight,bmpComboLeft, bmpComboCenter,bmpComboBot;
BITMAP bitRight, bitLeft, bitCenter;
SET_ZERO(bitRight); SET_ZERO(bitLeft); SET_ZERO(bitCenter);
if( m_nIDLeft )
{
bmpComboLeft.LoadBitmap(m_nIDLeft);
bmpComboLeft.GetBitmap(&bitLeft);
MemDC.SelectObject(bmpComboLeft);
dc.BitBlt(rc.left,rc.top,bitLeft.bmWidth,bitLeft.bmHeight,&MemDC,0,0,SRCCOPY);
}
if( m_nIDRight )
{
bmpComboRight.LoadBitmap(m_nIDRight);
bmpComboRight.GetBitmap(&bitRight);
MemDC.SelectObject(bmpComboRight);
dc.BitBlt(rc.right-bitRight.bmWidth,rc.top,bitRight.bmWidth,bitRight.bmHeight,&MemDC,0,0,SRCCOPY);
}
if( m_nIDCenter )
{
bmpComboCenter.LoadBitmap(m_nIDCenter);
bmpComboCenter.GetBitmap(&bitCenter);
MemDC.SelectObject(bmpComboCenter);
dc.StretchBlt(rc.left+bitLeft.bmWidth,rc.top,rc.right-bitLeft.bmWidth-bitRight.bmWidth,bitCenter.bmHeight,&MemDC,0,0,bitCenter.bmWidth,bitCenter.bmHeight,SRCCOPY);
}
CString sz;
GetWindowText(sz);
rc.left += nListBoxTextLeft;
//Select the font only if list box is created
if( m_listbox )
dc.SelectObject(m_listbox.GetFont());
dc.SetBkMode(TRANSPARENT);
RECT rcRepaint;
GetClientRect(&rcRepaint);
rcRepaint.left = rcRepaint.left + bitLeft.bmWidth;
rcRepaint.right = rcRepaint.right - bitRight.bmWidth;
rcRepaint.top += 3; rcRepaint.bottom -= 8;
//Set the normal/highlight color when its repainted
if( GetFocus()->m_hWnd == m_hWnd )
{
dc.FillSolidRect(&rcRepaint,m_colBackGroundHighLight);
dc.SetTextColor(m_colTextHighLight);
TRACE("Filling rect again on focus high\n");
}
else
{
dc.FillSolidRect(&rcRepaint,m_colBackGroundNormal);
dc.SetTextColor(m_colTextNormal);
TRACE("Filling rect again on focus normal\n");
}
dc.DrawText(sz,&rc,DT_VCENTER | DT_SINGLELINE);
if( m_listbox )
{
//TRACE("Painting the listbox\n");
CDC *pDC = m_listbox.GetDC();
m_listbox.GetClientRect(&rc);
CBrush pBrush;
pBrush.CreateSolidBrush(m_colBackGroundNormal);
m_listbox.GetDC()->FillRect(&rc,&pBrush);
//Draw the left side of the list box
DrawListLeft();
//Draw the right side of the list box
DrawListRight();
//Draw the top of the list bar
DrawListTop();
//Draw the bottom of the list bar
DrawListBot();
pDC->SetTextColor(m_colTextNormal);
CBrush brItemData;
RECT rcItemData;
CString szItemString;
brItemData.CreateSolidBrush(m_colBackGroundNormal);
for(int i =0;i<m_listbox.GetCount();i++)
{
m_listbox.GetText(i,szItemString);
m_listbox.GetItemRect(i,&rcItemData);
rcItemData.left += bitLeft.bmWidth+5;
pDC->SetBkMode(TRANSPARENT);
pDC->SetTextColor(m_colTextNormal);
nListBoxTextLeft = rcItemData.left;
//CFont* def_font = pDC->SelectObject(&m_Font);
pDC->SelectObject(m_listbox.GetFont());
pDC->DrawText(szItemString,&rcItemData, DT_VCENTER | DT_SINGLELINE);
//pDC->SelectObject(def_font);
}
}
}
BOOL McomboBox::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext)
{
// TODO: Add your specialized code here and/or call the base class
// Remove the CBS_SIMPLE and CBS_DROPDOWN styles and add the one I'm designed for
dwStyle &= ~0xF;
dwStyle |= CBS_DROPDOWNLIST;
// Make sure to use the CBS_OWNERDRAWVARIABLE style
dwStyle |= CBS_OWNERDRAWVARIABLE;
// Use default strings. We need the itemdata to store the state of the lamps
dwStyle |= CBS_HASSTRINGS;
dwStyle |= CBS_DROPDOWN;
return CWnd::Create(lpszClassName, lpszWindowName, dwStyle, rect, pParentWnd, nID, pContext);
}
void McomboBox::OnDestroy()
{
if (m_listbox.GetSafeHwnd() != NULL)
m_listbox.UnsubclassWindow();
CComboBox::OnDestroy();
}
void McomboBox::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
// TODO: Add your code to draw the specified item
//TRACE("DrawItem()\n");
if( lpDrawItemStruct->itemID == -1 )
return;
CDC pDC;
pDC.Attach(lpDrawItemStruct->hDC);
CBrush pBrush;
CString sItem;
if(lpDrawItemStruct->itemState & ODS_FOCUS)
{
pBrush.CreateSolidBrush(m_colBackGroundHighLight);
pDC.FillRect(&lpDrawItemStruct->rcItem, &pBrush);
pDC.SetTextColor(m_colTextHighLight);
}
else
{
pBrush.CreateSolidBrush(m_colBackGroundNormal);
pDC.FillRect(&lpDrawItemStruct->rcItem, &pBrush);
pDC.SetTextColor(m_colTextNormal);
}
//Draw the left image of the list box
DrawListLeft();
//Draw the right image of the list box
DrawListRight();
//Draw the bottom for the last item
if( lpDrawItemStruct->itemID == m_listbox.GetCount()-1 )
DrawListBot();
//Draw the top for the first item
if( lpDrawItemStruct->itemID == 0 )
DrawListTop();
// Copy the text of the item to a string
this->GetLBText(lpDrawItemStruct->itemID, sItem);
pDC.SetBkMode(TRANSPARENT);
// Draw the text after the images left postion
lpDrawItemStruct->rcItem.left = nListBoxTextLeft;
pDC.SelectObject(m_listbox.GetFont());
pDC.DrawText(sItem, &lpDrawItemStruct->rcItem, DT_VCENTER | DT_SINGLELINE);
}
void McomboBox::SetComboBitmap(UINT nIDLeft, UINT nIDRight, UINT nIDCenter)
{
m_nIDCenter = nIDCenter; m_nIDLeft = nIDLeft; m_nIDRight = nIDRight;
}
void McomboBox::SetComboListBitmap(UINT nIDListLeft, UINT nIDListRight, UINT nIDListTop, UINT nIDListBot)
{
m_nIDListLeft = nIDListLeft; m_nIDListRight = nIDListRight, m_nIDListTop = nIDListTop, m_nIDListBot = nIDListBot;
}
void McomboBox::DrawListLeft(int nHeight)
{
RECT rc;
CDC MemDC;
CDC *pDC = m_listbox.GetDC();
MemDC.CreateCompatibleDC(pDC);
m_listbox.GetClientRect(&rc);
CBitmap bmpImage;
BITMAP bitImage;
if( m_nIDListLeft )
{
bmpImage.LoadBitmap(m_nIDListLeft);
bmpImage.GetBitmap(&bitImage);
MemDC.SelectObject(bmpImage);
pDC->StretchBlt(rc.left,rc.top,bitImage.bmWidth,rc.bottom,&MemDC,0,0,bitImage.bmWidth,bitImage.bmHeight,SRCCOPY);
}
}
void McomboBox::DrawListRight(int nHeight)
{
RECT rc;
CDC MemDC;
CDC *pDC = m_listbox.GetDC();
MemDC.CreateCompatibleDC(pDC);
m_listbox.GetClientRect(&rc);
CBitmap bmpImage;
BITMAP bitImage;
if( m_nIDListRight )
{
bmpImage.LoadBitmap(m_nIDListRight);
bmpImage.GetBitmap(&bitImage);
MemDC.SelectObject(bmpImage);
pDC->StretchBlt(rc.right-bitImage.bmWidth,rc.top,bitImage.bmWidth,rc.bottom,&MemDC,0,0,bitImage.bmWidth,bitImage.bmHeight,SRCCOPY);
}
}
void McomboBox::DrawListTop(int nWidth)
{
RECT rc;
CDC MemDC;
CDC *pDC = m_listbox.GetDC();
MemDC.CreateCompatibleDC(pDC);
m_listbox.GetClientRect(&rc);
CBitmap bmpImage;
BITMAP bitImage;
if( m_nIDListTop )
{
bmpImage.LoadBitmap(m_nIDListTop);
bmpImage.GetBitmap(&bitImage);
MemDC.SelectObject(bmpImage);
pDC->StretchBlt(rc.left,rc.top,rc.right,bitImage.bmHeight,&MemDC,0,0,bitImage.bmWidth,bitImage.bmHeight,SRCCOPY);
}
}
void McomboBox::DrawListBot(int nWidth)
{
//Width must be check, sometimes we may not need to stretch to the whole control's width
RECT rc;
CDC MemDC;
CDC *pDC = m_listbox.GetDC();
MemDC.CreateCompatibleDC(pDC);
m_listbox.GetClientRect(&rc);
CBitmap bmpImage;
BITMAP bitImage;
if( m_nIDListBot )
{
bmpImage.LoadBitmap(m_nIDListBot);
bmpImage.GetBitmap(&bitImage);
MemDC.SelectObject(bmpImage);
pDC->StretchBlt(rc.left,rc.bottom-bitImage.bmHeight,rc.right,bitImage.bmHeight,&MemDC,0,0,bitImage.bmWidth,bitImage.bmHeight,SRCCOPY);
}
}
void McomboBox::SetHighlightColor(COLORREF colBackGround, COLORREF colText)
{
m_colBackGroundHighLight = colBackGround; m_colTextHighLight = colText;
}
void McomboBox::SetNormalPositionColor(COLORREF colBackGround, COLORREF colText)
{
m_colBackGroundNormal = colBackGround; m_colTextNormal = colText;
}
以上是重绘实现的代码，使用dropdown的时候可以设置默认选项，设置为droplist就不行了
风若飞 2015-06-10
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楼上+1.
重绘的话最好自己实现一下加密效果。
至于combox那个，应该是你代码有问题，把代码贴上来看看。
快乐鹦鹉 2015-06-10
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既然都已经重绘了，干脆不要用文本框自带的加密效果，自己封装在这个文本控件中就行了。如果设定为加密效果，自己显示时用*号显示
