Re: Controls execute same handler - C / C++ / MFC Discussion Boards

Re: Creating and Adding Menu at runtime

Hamid_RT14-Jun-07 19:34

Hamid_RT

14-Jun-07 19:34

How did you try to insert menu? did you use of CMenu::InsertMenu or CMenu::AppendMenu

WhiteSky

Re: Creating and Adding Menu at runtime

Karismatic14-Jun-07 19:40

Karismatic

14-Jun-07 19:40

Till now i did this sir

CMenu *pMenu = GetMenu();
pMenu->AppendMenu(MF_POPUP,0,"Heading");

but the problem is that i m unable to add menu items or submenu to it and also not able to attch coress functions to it

Re: Creating and Adding Menu at runtime

Hamid_RT14-Jun-07 19:50

Hamid_RT

14-Jun-07 19:50

See CMenu:: InsertMenu[^] does helpful?

WhiteSky

Re: Creating and Adding Menu at runtime

Karismatic14-Jun-07 20:18

Karismatic

14-Jun-07 20:18

used insertmenu function too but it works same as appendmenu

Re: Creating and Adding Menu at runtime

Hamid_RT14-Jun-07 20:36

Hamid_RT

14-Jun-07 20:36

If you run exmaple of MSDN and use of this code

submenu->AppendMenu(MF_POPUP, (UINT) submenu->m_hMenu, "&File");

it creates a popup menu for you did you try it?

WhiteSky

Re: Creating and Adding Menu at runtime

Karismatic14-Jun-07 20:23

Karismatic

14-Jun-07 20:23

thank you got it

Controls execute same handler

sunit514-Jun-07 18:50

sunit5

14-Jun-07 18:50

I have many ComboBox on my Dialog Box. I want those ComboBox execute same handler on event ON_CBN_SELCHANGE .Is it possible.Pls help me

Thanx in advance

never say die

Re: Controls execute same handler

sunit514-Jun-07 19:10

sunit5

14-Jun-07 19:10

i think this will work for me
ON_CONTROL_RANGE(wNotifyCode, id1, id2, memberFxn )

never say die

Hook chain order

codeprojecter_14-Jun-07 17:37

codeprojecter_

14-Jun-07 17:37

Hi,

I am kind of new for Hooks.

I have to make a keyboard hook for different applications.

But what i wish to do is my hook should be the last one just before the actual application from other hooks (if there is any) even user runs the hooking applications and the actual application in any order.

Thanks in advance

Re: Hook chain order

Naveen14-Jun-07 17:47

Naveen

14-Jun-07 17:47

If you install a hook, your applications hook will be called first. If another application installs a hook after some time, then that applications hook willl be called first and then that application calls your hook using the CallNextHookEx (). So you dont have to mind the hook installed after your application has started.

So in your hook funtion, call the CallNextHookEx() first( this will call all the preinstalled hooks ) then only do the processing you want. Thus your hook will become the last one.

nave

[OpenedFileFinder]

Re: Hook chain order

codeprojecter_15-Jun-07 4:17

codeprojecter_

15-Jun-07 4:17

Thanks Naveen Smile | :)

How to draw a Gradient(as fog) background

HOW WHAT14-Jun-07 14:39

HOW WHAT

14-Jun-07 14:39

Hi, i need draw a fog background, i search Internet find a source, but it run slow, how to optimize these code let it run fast( i nill malloc memory in twice, i want to unite DrawGradient function and ApplyTransformation function). or tell me other draw example.

Thanks.

// GradientRender.h: interface for the CGradientRender class.<br />
//<br />
//////////////////////////////////////////////////////////////////////<br />
<br />
#if !defined(AFX_GRADIENTRENDER_H__9B3090DB_F7D0_4D23_8BDA_9CFAC9A64ABE__INCLUDED_)<br />
#define AFX_GRADIENTRENDER_H__9B3090DB_F7D0_4D23_8BDA_9CFAC9A64ABE__INCLUDED_<br />
<br />
#if _MSC_VER > 1000<br />
#pragma once<br />
#endif // _MSC_VER > 1000<br />
<br />
class CGradientRender  <br />
{<br />
private:<br />
	unsigned char* m_Data;<br />
	void ApplyTransformation(int width, int height);<br />
<br />
public:<br />
	void DrawGradient( HDC hDC, RECT& rect, COLORREF startColor, COLORREF endColor);<br />
<br />
	CGradientRender();<br />
	virtual ~CGradientRender();<br />
<br />
};<br />
<br />
#endif // !defined(AFX_GRADIENTRENDER_H__9B3090DB_F7D0_4D23_8BDA_9CFAC9A64ABE__INCLUDED_)

// GradientRender.cpp: implementation of the CGradientRender class.<br />
//<br />
//////////////////////////////////////////////////////////////////////<br />
<br />
#include "stdafx.h"<br />
#include "GradientRender.h"<br />
#include "math.h"<br />
<br />
#ifdef _DEBUG<br />
#undef THIS_FILE<br />
static char THIS_FILE[]=__FILE__;<br />
#define new DEBUG_NEW<br />
#endif<br />
<br />
//////////////////////////////////////////////////////////////////////<br />
// Construction/Destruction<br />
//////////////////////////////////////////////////////////////////////<br />
<br />
CGradientRender::CGradientRender()<br />
{<br />
	m_Data = NULL;<br />
}<br />
<br />
CGradientRender::~CGradientRender()<br />
{<br />
	if ( m_Data != NULL )<br />
		delete m_Data;<br />
}<br />
<br />
void CGradientRender::DrawGradient( HDC hDC, RECT& rect, COLORREF startColor, COLORREF endColor)<br />
{<br />
	int i, j;<br />
	double r;<br />
	int X, Y;<br />
	double fi;<br />
	// Calculate image size<br />
	int width = rect.right - rect.left;<br />
	int height = rect.bottom - rect.top;<br />
	int size = height*width*4;<br />
	double radius = sqrt( pow(height/2,2) + pow(width/2,2) );<br />
	double R = sqrt( pow(width/4,2) + pow(height/4,2) );<br />
<br />
	// Create data buffer<br />
	m_Data = new unsigned char[size];<br />
	<br />
	// Create gradient<br />
	for ( i=0; i<height; i++ )<br />
	{<br />
		for ( j=0; j<width; j++ )<br />
		{<br />
			r = sqrt( pow(double(i-height/2)/radius,2) + pow(double(j-width/2)/radius,2) );<br />
			if ( r <= 1.0 )<br />
			{<br />
				m_Data[i*width*4 + j*4] = (unsigned char)(r*GetBValue(endColor) + (1-r)*GetBValue(startColor));<br />
				m_Data[i*width*4 + j*4+1] = (unsigned char)(r*GetGValue(endColor) + (1-r)*GetGValue(startColor));<br />
				m_Data[i*width*4 + j*4+2] = (unsigned char)(r*GetRValue(endColor) + (1-r)*GetRValue(startColor));<br />
			}<br />
			else<br />
			{<br />
				m_Data[i*width*4 + j*4] = GetBValue(endColor);<br />
				m_Data[i*width*4 + j*4+1] = GetGValue(endColor);<br />
				m_Data[i*width*4 + j*4+2] = GetRValue(endColor);<br />
			}<br />
<br />
		}<br />
	}<br />
<br />
<br />
	ApplyTransformation( width, height );<br />
<br />
	// Create temporary bitmap<br />
	HBITMAP hBitmap = (HBITMAP)CreateBitmap( width, height, 1, 32, m_Data );<br />
	<br />
	// Create temporary device context<br />
	HDC hMemDC = CreateCompatibleDC(hDC);<br />
	HBITMAP hOldBitmap = (HBITMAP)SelectObject( hMemDC, hBitmap );<br />
	<br />
	// Blit gradient bitmap<br />
	BitBlt( hDC, rect.left, rect.top, width, height, hMemDC, 0, 0, SRCCOPY );<br />
	<br />
	// Free memory<br />
	SelectObject( hMemDC, hOldBitmap );<br />
	DeleteDC(hMemDC);<br />
	DeleteObject(hBitmap);<br />
	delete m_Data;<br />
	m_Data = NULL;<br />
}<br />
<br />
void CGradientRender::ApplyTransformation(int width, int height)<br />
{<br />
	int X, Y;<br />
	double r, fi;<br />
	double R = sqrt( pow(width/4,2) + pow(height/4,2) );<br />
	<br />
	int size = height*width*4;<br />
	unsigned char* newBuffer = new unsigned char[size];<br />
	memcpy( newBuffer, m_Data, size );<br />
	<br />
	for ( int i=0; i<height; i++ )<br />
	{<br />
		for ( int j=0; j<width; j++ )<br />
		{<br />
			fi = atan(double(i-height/2)/double(j-width/2));<br />
			r = sqrt( pow((i-height/2),2) + pow((j-width/2),2) );<br />
			X = int((pow(r,2)/R)*cos(fi));<br />
			Y = int(fabs((pow(r,2)/R)*sin(fi))) % height;<br />
			newBuffer[i*width*4 + j*4] = m_Data[Y*width*4 + X*4];<br />
			newBuffer[i*width*4 + j*4+1] = m_Data[Y*width*4 + X*4+1];<br />
			newBuffer[i*width*4 + j*4+2] = m_Data[Y*width*4 + X*4+2];<br />
		}<br />
	}<br />
<br />
	memcpy( m_Data, newBuffer, size );<br />
	delete newBuffer;<br />
}

Re: How to draw a Gradient(as fog) background

Naveen14-Jun-07 14:56

Naveen

14-Jun-07 14:56

How about the GDI+. check the Graphics classs and LinerGradientBrush in the GDI+.

nave

[OpenedFileFinder]

Re: How to draw a Gradient(as fog) background

HOW WHAT14-Jun-07 16:12

HOW WHAT

14-Jun-07 16:12

Oh, thanks. But i don't want use GDI+.

Re: How to draw a Gradient(as fog) background

Hamid_RT14-Jun-07 19:31

Hamid_RT

14-Jun-07 19:31

See http://www.codeproject.com/bitmap/CGradientRender.asp[^]

WhiteSky

Re: How to draw a Gradient(as fog) background

HOW WHAT14-Jun-07 20:57

HOW WHAT

14-Jun-07 20:57

Those Question source code, copy from CGradientRender.

Re: How to draw a Gradient(as fog) background

Nibu babu thomas14-Jun-07 17:13

Nibu babu thomas

14-Jun-07 17:13

HOW WHAT wrote:
but it run slow, how to optimize these code let it run fast( i nill malloc memory in twice, i want to unite DrawGradient function and ApplyTransformation function). or tell me other draw example.

Use GradientFill.

Nibu thomas
A Developer

Code must be written to be read, not by the compiler, but by another human being.

http:\\nibuthomas.wordpress.com

Re: How to draw a Gradient(as fog) background

HOW WHAT14-Jun-07 20:53

HOW WHAT

14-Jun-07 20:53

But how to use GradientFill draw fog background...

LAN Bandwidth setting

Akin Ocal14-Jun-07 14:25

Akin Ocal

14-Jun-07 14:25

How can i set my LAN network bandwidth to a specific value ?

BEST REGARDS

Questions about HW Information

Akin Ocal14-Jun-07 14:24

Akin Ocal

14-Jun-07 14:24

I dont want to use WMI. How can i get datas of :

1. RAM
2. Ethernet
3. Harddisk and other optical disks on my system
4. PCI Devices
5. USB Devices

Thank you very much.

Re: Questions about HW Information

Hamid_RT14-Jun-07 19:43

Hamid_RT

14-Jun-07 19:43

See http://www.codeproject.com/useritems/DriveInfoEx.asp?df=100&forumid=371167&exp=0&select=1833711[^] for harddisk but can you say why you want without WMI ?

WhiteSky

how to query data from CRecordset

paulosuckow14-Jun-07 12:06

paulosuckow

14-Jun-07 12:06

Hi
Please help me do a query based on date.

I have m_pSet (a pointer to CRecordset) and a filter m_strFilter

my date is a ColeDateTime in the form of "mm/dd/yyyy"

I need to set: m-pSet->m_strFilter to select records with birthday >= 1/1/1970

Any idea.

Thanks
Dan

Bitmap in parent overlaps child dialog.

aquawicket14-Jun-07 11:49

aquawicket

14-Jun-07 11:49

I've got a parent dialog with a picture control linked to a .bmp file. Then I've got a child dialog that opens in the parent. When I open the child dialog the bitmap of the parent overlaps the child window. Any ideas?

Re: Bitmap in parent overlaps child dialog.

Mark Salsbery14-Jun-07 12:02

Mark Salsbery

14-Jun-07 12:02

What are the style and extended style flags used when creating the child dialog?

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Re: Bitmap in parent overlaps child dialog.

aquawicket14-Jun-07 12:10

aquawicket

14-Jun-07 12:10

childDlg = new cChildDlg;
childDlg->Create(cChildDlg::IDD, this);
childDlg->SetWindowPos(NULL, a, b, c, d, SWP_SHOWWINDOW);

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