How to determine which textbox is drag/drop file to?

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VS2010

Hi all,

I have a MFC dialog C++ application in VS2010, And my application has two textbox is source folder(txtSrcfolder) and destination folder(txtDesFolder) so when I drag and drop a file to txtxDesFolder, I want to assign full file path to txtDesFolder and the same to txtSrcFolder.
But how to determine which textbox is draged to?
(if there is only one textbox i can handle it but with many control I can't)

Can you help me, please?

Posted 20-Jun-12 1:05am

ngthtra

Updated 24-Jan-19 0:23am

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Eugen Podsypalnikov · Accepted Answer · 2012-06-20T01:40:00

Solution 1

Try to pass a box pointer to this test :) :

C++

/*static*/ bool CYourDialog::TestDropWnd(CWnd* pcWndTest)
{
  CPoint cPoint;
  if (::GetCursorPos(&cPoint)) {
    return (pcWndTest == CWnd::WindowFromPoint(cPoint));
  }
  return false;
}

Posted 20-Jun-12 1:40am

Eugen Podsypalnikov

Updated 20-Jun-12 1:45am

v3

Comments

ngthtra 20-Jun-12 22:19pm

how to use this code?

Eugen Podsypalnikov 21-Jun-12 1:55am

At your "dropped" event, call this test for the both boxes (pass their pointers). The function will return true, if a testing box is under the mouse :)

ngthtra 21-Jun-12 22:37pm

so what will pcWndTest parameter be inputed? I am using CAppDlg::OnDropFiles(HDROP hDropInfo){} to get folder path

Eugen Podsypalnikov 22-Jun-12 3:24am

In the context of your dialog:
bool bDroppedOnSrcBox(GetDlgItem(IDC_SRC_BOX)); // IDC_SRC_BOX is the resource ID of the box
bool bDroppedOnTrgBox(GetDlgItem(IDC_TRG_BOX)); // IDC_TRG_BOX is the resource ID of the box