|
As you discovered, CS_DBLCLKS is a *CLASS* style, it won't work in the Window Create.
|
|
|
|
|
|
Can anyone tell me why this code does not work?
I spent a lot of time searching messages but still have no clue.
void CChildView::OnPaint(){
CPaintDC dc(this);
CDC DC;
DC.CreateCompatibleDC(&dc);
CRect R;
GetClientRect(&R);
CBitmap bm;
bm.CreateCompatibleBitmap(&DC,R.right,R.bottom);
DC.SelectObject(bm);
CBrush b(RGB(255,0,0));
DC.SelectObject(&b);
DC.Rectangle(20,20,800,400);
dc.BitBlt(0,0,R.right,R.bottom,&DC,0,0,SRCCOPY);
dc.SelectObject(&b);
dc.Rectangle(20,20,100,100);
}
The last 2 lines produce a bright red rectangle in the proper place
but the BitBlt produces a black and white crosshatch pattern.
I have run out of options
|
|
|
|
|
Not completely sure what exactly you expect to see, since you only said it doesn't work for you, this could mean a lot of things.
Anyways, when you create a DC, it has a "default", 1 bit,1x1 bitmap selected into it. When you use CreateCompatibleBitmap on this DC, you are creating another bitmap with 1 bit colordepth, i supose that is not what you want. Try creating a compatible bitmap with dc instead of DC.
bm.CreateCompatibleBitmap(&dc,R.right,R.bottom); Does this work better?
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> //TODO: Implement signature here<
|
|
|
|
|
Thanks code-o-mat
That seems to have solved the problem.
I don't know why I didn't see that, I says so in the manual.
|
|
|
|
|
Somtimes tbe most obvious things slip our minds, probably exactly because they are so obvious we never start to think about them.
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> //TODO: Implement signature here<
|
|
|
|
|
Boy ain't that the truth.
I haven't done any coding in about 3 years, but it is starting to come back to me.
|
|
|
|
|
The problem is: i got a window, which is simply created with CreateWindow and its class is registered with RegisterClass, but, window has no background at all. It has frame with these buttons (close, minimize, maximize) but no background - it completely mirrors desktop. Have you ever encountered such thing? If yes, why this is happening?
Thanks
011011010110000101100011011010000110100101101110
0110010101110011
|
|
|
|
|
Never mind, found a solution. Seems better not to use DWORD dwExStyle parameter at all.
011011010110000101100011011010000110100101101110
0110010101110011
|
|
|
|
|
csrss wrote: Seems better not to use DWORD dwExStyle parameter at all.
There's nothing wrong with extended styles, I use them all the time. I supect that you inadvertently had WS_EX_TRANSPARENT set in your CreateWindowEx() call.
I must get a clever new signature for 2011.
|
|
|
|
|
I have an list control who have report style , but no full row selected . There is any possibility to know , on OnDblclkList(...) handler on which row is doubleclick fired ? Of course , when double-click is fired anywhere on list .
modified on Friday, March 11, 2011 2:07 PM
|
|
|
|
|
You can use the API calls of GetFirstSelectedItemPosition() and GetNextSelectedItem() to find what items are selected, but that may not be the item where the double-click took place. The itme with focus that will probably be where the double-click took place. 
Chris Meech
I am Canadian. [heard in a local bar]
In theory there is no difference between theory and practice. In practice there is. [Yogi Berra]
posting about Crystal Reports here is like discussing gay marriage on a catholic church’s website.[Nishant Sivakumar]
|
|
|
|
|
Thank you for answer ... looking through MSDN , I found SubItemHitTest(...) method , but I don't know how I should use it in double click handler ... 
|
|
|
|
|
I did it .. and for those who have the same issue , I put here the sample code :
void CMyView::OnDblclkList1(NMHDR* pNMHDR, LRESULT* pResult)
{
CString sTemp;
LVHITTESTINFO lv;
int nItem,nSubItem;
DWORD dwPos = ::GetMessagePos();
CPoint point((int)LOWORD(dwPos),(int)HIWORD(dwPos));
m_List.ScreenToClient(&point);
lv.pt = point;
m_List.SubItemHitTest(&lv);
nItem = lv.iSubItem;
nSubItem = lv.iItem;
sTemp.Format("nItem %d nSubItem %d",nItem,nSubItem);
MessageBox(sTemp);
*pResult = 0;
}
Thank you all , specially to Chris !
|
|
|
|
|
Please look up NM_DBLCLK on MSDN.
Here's how to use it:
void CXListCtrlTestDlg::OnDblClick(NMHDR* pNMHDR, LRESULT* pResult)
{
LPNMITEMACTIVATE pNMIA = reinterpret_cast<LPNMITEMACTIVATE>(pNMHDR);
int nItem = -1;
int nSubItem = -1;
if (pNMIA)
{
nItem = pNMIA->iItem;
nSubItem = pNMIA->iSubItem;
}
if (nItem >= 0 && nSubItem >= 0)
{
CString strText = m_List.GetItemText(nItem, nSubItem);
Log(_T("OnDblClick at (%d,%d): '%s'"), nItem, nSubItem, strText);
}
*pResult = 0;
}
Here's the message map entry:
ON_NOTIFY(NM_DBLCLK, IDC_LIST, OnDblClick)
|
|
|
|
|
Does function that , except one thing : nItem is always -1 ... why ?
I mention that list controls is not empty ( I load something in it ).
|
|
|
|
|
I know why nItem is always -1 , because I have LVS_SINGLESEL style ....
|
|
|
|
|
Hi all,
i writing excel file by two diffrent ways.
1. write (*.xls) excel file by odbc driver
2. write (*.xlsx) excel file using excel automation
its working fine.
i want to create heading in first line and want to format the column title text.
please tell me how can i do this.
thanks in advance.
|
|
|
|
|
Try here[^] for lots of suggestions.
I must get a clever new signature for 2011.
|
|
|
|
|
Did a quick walk through the excel type library using OLE/COM Object Viewer, fount 'Font' interface.
Get font property of Range (get range of desired cells), and modify it.
pesedo code may look like:-
Range range = excel.getRange("A2");
Font font = range.getFont();
font.putBold(TRUE);
Also found font property for 'Selection' interface too. Try these using the automation method you are using.
|
|
|
|
|
I am currently trying to copy the contents from a single dimension array to a multiple dimension array using pointer notation. I though am having problems doing so. Can someone out there show me how to program a multiple dimension array that will take from a single dimension array? Listed below is sample code that I am trying to get to work.
Code:
#include <stdio.h>
#define SIZE 5
#define SIZE2 5
#define ROWS 2
void transarr4(int *(*(arry)), int * arry2, int row); //Pointer Notation (Multiple Dimension Array)
int main(void)
{
int arr[SIZE] = {100,200,300,400,500};
int arr2[ROWS][SIZE2] = {{},{}};
int *(*(arr3)) = 0;
transarr4(arr3,arr,ROWS); //Pointer Notation (Multiple Dimension Array)
return 0;
}
//====================================================================================================
// Pointer Notation (Multi-Dimension Array)
//====================================================================================================
void transarr4(int *(*(arry)), int * arry2, int row)
{
int num = 0;
int r = 0;
int c = 0;
for(r = 0; r < row; r++)
{
for(c = 0; c < SIZE2; c++)
{
//arr[r][c] = arr2[c];
*(*(arry)) = arry2[c];
printf("%d",*(*(arry + r)+c));
printf("\n");
}
}
}
|
|
|
|
|
Are trying to transfer content of arr to arr3, right? But I am not able to see any memory allocation for arr3... You have to allocate some memory.. The way you are doing wont be safe in terms of memory pointer usage..
You can do something like this...
case 1: assigning direct pointer of arr to arr3
arr3 = new int[SIZE];
arr3[i] = &(arr[UPTO_SIZE])
case 2: copyinh content of arr to arr3
arr3 = new int[SIZE];
arr3[i] = new int[size2]
I hope you can add proper code in this logic... As we cannot complete your assignment... 
|
|
|
|
|
chevu,
Thank you for your reply. I am not taking a class but doing self study to learn C. I will take your solution and walk through the logic to understand.
Thanks again.
Mike
|
|
|
|
|
And ya if you don't want to new memory allocation you can directly assign address of arr to arr3, but for that in your function your have to send address of arr3 pointer i mean &arr3 (which you have declared as int** arr3), and in function you can assign address of arr to arr3....
|
|
|
|
|
A couple of suggestions:
1. Put your code between <pre></pre> tags so it is more readable.
2. Try compiling the above and report or fix any errors you see,
I must get a clever new signature for 2011.
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
