PAINTSTRUCT ps; 
The CDC * pDC=BeginPaint (& amp; Ps); 
Int nPos=m_Pro. GetPos (); 
Cstrings csPos; 
CsPos. The Format (" % d % % ", nPos); 
CRect clientRC; 
GetClientRect (clientRC); 
CSize sztext=pDC - & gt; GetTextExtent (csPos); 
Int nX=(clientRC Width () - sztext. Cx)/2; 
Int nY=(clientRC Height () - sztext. Cy)/2; 
//pDC - & gt; SetBkMode (TRANSPARENT); 
Int nMin nMax; 
M_Pro. GetRange (nMin nMax); 
Double dFraction=(double) clientRC. Width ()/(nMax - nMin); 
Int nLeft=nPos * dFraction; 
CRect leftRC=clientRC; 
LeftRC. Left=nLeft; 
CRect rightRC=clientRC; 
RightRC. Left=nLeft; 
//pDC - & gt; FillRect (leftRC, & amp; CBrush (m_Pro)); 
PDC - & gt; FillRect (leftRC, & amp; CBrush (m_crBlank)); 
PDC - & gt; SetTextColor (m_crText); 
PDC - & gt; TextOut (nX, nY, csPos); 
The ReleaseDC (pDC); 
EndPaint (& amp; Ps); 

CodePudding user response:

//pDC - & gt; FillRect (leftRC, & amp; CBrush (m_Pro));
Cancel this sentence annotations to try again

CodePudding user response:

The progress bar is m_Pro? PDC progress bar?

CodePudding user response:

That is to say you the paint of paint is a progress bar

CodePudding user response:

M_Pro variables is a progress bar

CodePudding user response:

PDC - & gt; FillRect (leftRC, & amp; CBrush (m_Pro)); The m_Pro in this sentence should be m_crProgreess current progress of color

CodePudding user response:

PDC - & gt; FillRect (leftRC, & amp; CBrush (m_Pro));
1 if pDC m_Pro. GetDC (); ?
2 leftRC is a progress bar on the left?
3, & amp; CBrush (m_Pro)???????
CBrush: : CBrush
CBrush ();

The CBrush (a COLORREF crColor);
Throw (CResourceException);

The CBrush (int nIndex, a COLORREF crColor);
Throw (CResourceException);

CBrush (CBitmap * pBitmap);
Throw (CResourceException);

No CBrush (m_Pro)!

CodePudding user response:

PDC - & gt; FillRect (leftRC, & amp; CBrush (m_Pro));
1 if pDC m_Pro. GetDC (); ? Not
2 leftRC is a progress bar on the left? Should be the client area
3, & amp; CBrush (m_Pro)???????
CBrush: : CBrush
CBrush ();

The CBrush (a COLORREF crColor);
Throw (CResourceException);

The CBrush (int nIndex, a COLORREF crColor);
Throw (CResourceException);

CBrush (CBitmap * pBitmap);
Throw (CResourceException);

No CBrush (m_Pro)! Should be a CBrush (m_crProgress); COLORREF m_crProgress;//color

CodePudding user response:

In the progress bar OnPaint, custom painting!

CodePudding user response:

Is in the OnPaint

CodePudding user response:

1 suggestion from CProgressCtrl derived a new class, handle the WM_PAINT message
2 can't block message ring, long operation process in the background

CodePudding user response:

The practice of the win32
1 create
The HWND CreateProgress (HINSTANCE HINSTANCE, HWND hwndParent)
{//progressbar
HWND hProgress=0;
HProgress=CreateWindow (PROGRESS_CLASS/* */"msctls_progress32",
NULL,
WS_VISIBLE | WS_CHILD | WS_TABSTOP | PBS_SMOOTH,
10 and 40, 160, 30,
HwndParent, HMENU IDC_PROGRESS,
HInstance,
NULL);
//
SendMessage (hProgress PBM_SETRANGE, 0, MAKELPARAM (0100));
SendMessage (hProgress PBM_SETSTEP, 1, 0);
The SetTimer (hProgress, 1200, NULL);
//
Return hProgress;

}
2. WndProc subclass (derived)
Case WM_CREATE message handler:
{
M_hProgress=CreateProgress ((HINSTANCE) GetWindowLong (HWND, GWL_HINSTANCE), HWND);
WNDPROC PbOldProc=(WNDPROC) SetWindowLong (m_hProgress GWL_WNDPROC, (LONG) PBProc);
SetProp (m_hProgress,//handle of window
"PbOldProc",//the atom or the address of the string
PbOldProc);
3 new scrollbar

 
//ProgressBar 
LRESULT a CALLBACK PBProc (HWND HWND, UINT Msg, WPARAM WPARAM, LPARAM LPARAM) 
{
PAINTSTRUCT ps; 
HDC HDC. 
int nPos; 
The RECT clientRC; 
The RECT leftRC; 
Double dFraction; 
Int nLeft; 
HBRUSH br; 
Char prompt [40]. 
The SIZE marking; 
//get oldproc 
WNDPROC OldPbProc=(WNDPROC) GetProp (hWnd, "PbOldProc"); 
Sprintf (prompt, "PBProc: % d \ n", Msg);//case WM_NOTIFY=4 e 
OutputDebugString (prompt); 
//
The switch (Msg) 
{
In case the WM_PAINT: 
HDC=BeginPaint (hWnd, & amp; Ps); 
NPos=SendMessage (hWnd PBM_GETPOS, 0, 0). 
GetClientRect (hWnd, & amp; ClientRC); 
FillRect (HDC, & amp; ClientRC, HBRUSH GetStockObject (LTGRAY_BRUSH)); 
DFraction=(double) (clientRC. Right)/(100); 
NLeft=(int) (nPos * dFraction); 
LeftRC=clientRC; 
LeftRC. Right=nLeft; 
LeftRC. Top +=18; 
Br=CreateSolidBrush (RGB (0, 255)); 
FillRect (HDC, & amp; LeftRC, br); 
Sprintf (prompt, "% d % %", nPos); 
GetTextExtentPoint32 (HDC, prompt, strlen (prompt), & amp; Sz); 
SetTextColor (HDC, RGB (0, 0)); 
SetBkMode (HDC, TRANSPARENT); 
TextOut (HDC, (int) (nLeft * (cx) clientRC. Right - sz./(double) clientRC. Right), and 0, prompt, strlen (prompt)); 
EndPaint (hWnd, & amp; Ps); 
return 1; 
Case WM_TIMER: 
SendMessage (hWnd PBM_STEPIT, 0, 0); 
return 1; 
} 
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