C / C++ / MFC

Re: Reflection & late binding [modifed]

20-May-06 3:53

ey_cat wrote:
Hi all.
Is there a way to discover the containing object or class of a MethodInfo?
(i mean the object which the method is its member...)

Are you trying to get the type of the current instance..??
if so see the following

Method - GetType() 
Property - ReflectedType

Hope i understood your question.

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

ey_cat20-May-06 9:32

ey_cat

20-May-06 9:32

I have a MethodInfo which is a member in a class.
i would like to discover the class type as an input to CreateInstance.
(the MethodInfo is the only info i have!)
Thanks...

About Runtime class

Ramu.e20-May-06 1:58

Ramu.e

20-May-06 1:58

What is CRuntimeClass,RUNTIME_CLASS?How can we use these?Where do we use these? Confused | :confused:

E-Ramu

Hamid_RT20-May-06 2:01

Hamid_RT

20-May-06 2:01

See Runtime class information using CRuntimeClass in MFC:[^]

whitesky

Laxman Auti20-May-06 2:11

20-May-06 2:11

Ramu.e wrote:
What is CRuntimeClass,RUNTIME_CLASS?How can we use these?Where do we use these?

CRuntimeClass is a structure
RUNTIME_CLASS is a MACRO which gets the run-time class structure from the name of a C++ class.

RUNTIME_CLASS returns a pointer to a CRuntimeClass structure for the class specified by class_name. Only CObject-derived classes declared with DECLARE_DYNAMIC, DECLARE_DYNCREATE, or DECLARE_SERIAL will return pointers to a CRuntimeClass structure.

As per my knowledge
-one use of the RUNTIME_CLASS is for Creation of the User Interface Threads
-other use of RUNTIME_CLASS is for Creation of the SpliterWindows.

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

Ramu.e21-May-06 22:59

Ramu.e

21-May-06 22:59

Thank you Lakshman Rose | [Rose]

E-Ramu

Laxman Auti21-May-06 23:34

21-May-06 23:34

Welcome

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

AlphaBlend Method

_raghu20-May-06 1:17

_raghu

20-May-06 1:17

I'm a newbie to VC++. I'm working on Graphics and wants to know how to make use of CDC class' alphablend method. I scrolled thru the MSDN but didnt find it much useful as there was no example describing it.

I heard that by using alphablend method we can achieve high quality graphics as it enables transperancy.

I wud be more happy if i can get an example.

Please somebody help me! ...

raghu

Monty²20-May-06 1:33

Monty²

20-May-06 1:33

Help[^] is on the way Big Grin | :-D

You know you're obsessed with computer graphics when you're outside and you look up at the trees and think, "Wow! That's spectacular resolution!"

_raghu20-May-06 1:45

_raghu

20-May-06 1:45

Thanks for the reply pal ...........but that didnt help me to know how BLENDFUNCTION structure works. Moreover the project is a DIALOG BASED....
I'm doing my work in SDI.

Can't i get a simple example that uses alphablend function and displays a simple rectangle?

ne how thanks once again ...for the reply....

raghu

Monty²20-May-06 1:53

Monty²

20-May-06 1:53

You are lazy Hmmm | :|

You know you're obsessed with computer graphics when you're outside and you look up at the trees and think, "Wow! That's spectacular resolution!"

Moving Linee on a image [modifed]

Hamid_RT20-May-06 1:54

Hamid_RT

20-May-06 1:54

See

<br />
	BLENDFUNCTION bend;<br />
	bend.BlendOp=AC_SRC_OVER;<br />
	bend.BlendFlags=0;<br />
	bend.AlphaFormat=AC_SRC_OVER;<br />
	bend.SourceConstantAlpha=50;<br />
AlphaBlend(GetDC()->m_hDC,0,0,400,400,m_pDC.m_hDC,0,0,0,0,bend);<br />

maybe it is some helpful to you of course you need to insert bitmap to dc

whitesky

anjita20-May-06 0:12

anjita

20-May-06 0:12

in my code i am displaying a bmp image
Now i want to display a moving straight line from top to bottom on my image
The problem i am facing is the previous line i am displaying using
for(int i = 0 ; i < 10 ; i++)
{
dc.SelectStockObject(WHITE_PEN);
dc.MoveTo(pStart);
dc.LineTo(pEnd);

pStart.y = pStart . y + ldlist;
pEnd . y = pStart . y ;

}
remains but i want everytime only a single line should be shown
where ldlist is the distance my line shud move

-- modified at 6:12 Saturday 20th May, 2006

Re: Moving Linee on a image

_AnsHUMAN_ 20-May-06 0:20

_AnsHUMAN_

20-May-06 0:20

Check SetROP2() and draw twice to show the effect that only a single line is moving you have to redraw the previous line with back color.

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Property Sheets and Pages

si_6919-May-06 23:53

si_69

19-May-06 23:53

Hi All

I have a property sheet wizard i am using, which has three pages
on the second page, when the user clicks next to go to the final page
depending on which option they have chosen on page 2 (i,e A or B)
a different property page will be displayed,

So if option A is selected on page 2 when next is clicked property page X is displayed
but if option B is selected on page 2 next is clicked property page Y is displayed

hope that makes sense?

I take it i would need to override the OnNext in page2 but im not sure
what to put to display the property page that i want
Can any one help

Simon

Kiran Kumar Singani20-May-06 2:03

Kiran Kumar Singani

20-May-06 2:03

Hi Simon,
U can set the dialog into the ur property page 3 dynamically. when ever user click the Next on Page 2 based on option us et the appropriate dialog on 3 rd property page .

si_6920-May-06 6:42

si_69

20-May-06 6:42

Thanks for the reply kiran

when you say

Kiran Kumar Singani wrote:
U can set the dialog into the ur property page 3 dynamically

could you give me an example??

thanks

si

Michael Dunn20-May-06 13:05

Michael Dunn

20-May-06 13:05

The return value from OnNext() determines which page is displayed next:

Return 0 to allow the wizard to go to the next page. Return -1 to prevent the wizard from changing pages. To display a particular page, return its dialog resource identifier.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

si_6920-May-06 13:09

si_69

20-May-06 13:09

Thanks, but when you say

Michael Dunn wrote:
To display a particular page, return its dialog resource identifier.

im not sure what you mean, can you give me an example??

Michael Dunn20-May-06 14:16

Michael Dunn

20-May-06 14:16

IDD_WIZARD_PAGE_X or whatever IDs you assigned to the dialogs.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Color Scheme

RockyJames19-May-06 21:15

RockyJames

19-May-06 21:15

Hi,
How to get Current Color Scheme of the System.I am working on Widnows Xp.How to get the current Color Scheme that is selected .

Thanks in before
James

Re: Color Scheme

Nibu babu thomas19-May-06 21:37

Nibu babu thomas

19-May-06 21:37

RockyJames wrote:
How to get Current Color Scheme of the System.I am working on Widnows Xp.How to get the current Color Scheme that is selected .

Take a look at GetSysColor.

Nibu thomas
Software Developer

Programming Tips[^]

Re: Color Scheme

Laxman Auti19-May-06 23:09