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Changing mouse icon with MouseEvent [message #54793]

Wed, 16 September 2020 18:59

koldo
Messages: 3435
Registered: August 2008

Senior Veteran

Hi all

I wanted to change mouse icon when clicking, but I cannot.
Please tell me what I am doing wrong. Thank you!

#include <CtrlLib/CtrlLib.h>

using namespace Upp;

struct App : TopWindow {
	virtual Image MouseEvent(int event, Point, int, dword) {
		if ((event & Ctrl::BUTTON) == Ctrl::LEFT && (event & Ctrl::ACTION) == Ctrl::DOWN) 
			return Image::Hand();
		return Image::Arrow();
	}
};

GUI_APP_MAIN
{
	App().Run();	
}

Best regards
Iñaki

[Updated on: Wed, 16 September 2020 19:37]

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Re: Changing mouse icon with MouseEvent [message #54800 is a reply to message #54793]

Thu, 17 September 2020 09:09

mirek
Messages: 14257
Registered: November 2005

Ultimate Member

#include <CtrlLib/CtrlLib.h>

using namespace Upp;

#include <CtrlLib/CtrlLib.h>

using namespace Upp;

struct App : TopWindow {
	virtual Image MouseEvent(int event, Point, int, dword) {
		if (event == CURSORIMAGE) 
			return Image::Hand();
		return Image::Arrow();
	}
};

GUI_APP_MAIN
{
	App().Run();	
}

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Re: Changing mouse icon with MouseEvent [message #54802 is a reply to message #54800]

Thu, 17 September 2020 11:22

koldo
Messages: 3435
Registered: August 2008

Senior Veteran

Thank you Mirek

Unfortunately the code always shows a hand.
Next option works, although it probably could be improved:

#include <CtrlLib/CtrlLib.h>

using namespace Upp;

struct App : TopWindow {
	bool showHand = false;
	
	virtual void LeftDown(Point, dword) 	{showHand = true;}
	
	virtual void LeftUp(Point, dword) 	{showHand = false;}
	
	virtual Image CursorImage(Point, dword) {
		if (showHand)
			return Image::Hand();
		else
			return Image::Arrow();
	}
};

GUI_APP_MAIN
{
	App().Run();	
}

Best regards
Iñaki

Report message to a moderator

Re: Changing mouse icon with MouseEvent [message #54803 is a reply to message #54802]

Thu, 17 September 2020 11:57

mirek
Messages: 14257
Registered: November 2005

Ultimate Member

koldo wrote on Thu, 17 September 2020 11:22

Thank you Mirek

Unfortunately the code always shows a hand.
Next option works, although it probably could be improved:

#include <CtrlLib/CtrlLib.h>

using namespace Upp;

struct App : TopWindow {
	bool showHand = false;
	
	virtual void LeftDown(Point, dword) 	{showHand = true;}
	
	virtual void LeftUp(Point, dword) 	{showHand = false;}
	
	virtual Image CursorImage(Point, dword) {
		if (showHand)
			return Image::Hand();
		else
			return Image::Arrow();
	}
};

GUI_APP_MAIN
{
	App().Run();	
}

This works.

Note that you have not said in the previous post what you really want to achieve... Smile

Simpler solution:

struct App : TopWindow {
	virtual Image MouseEvent(int event, Point, int, dword) {
		if (event == CURSORIMAGE && GetMouseLeft()) 
			return Image::Hand();
		return Image::Arrow();
	}
};

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Re: Changing mouse icon with MouseEvent [message #54804 is a reply to message #54803]

Thu, 17 September 2020 12:47

koldo
Messages: 3435
Registered: August 2008

Senior Veteran

Solved. Thank you Mirek!

Best regards
Iñaki

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