I want to control the flow of eject action! when user click eject, it will get into my code, then i can control it.So i must modify the menuitem, there are two flag can be used, MF_POSITION and MF_COMMAND, it seems that is impossible to get the position of eject, so i choose MF_COMMAND, but i have to get the ID.
It seems to be impossible. How I told you before: every application can use its own ID for the eject command. The usage of a command is hard encoded in its program-code. Therefore its no way to find out which command executes the eject function.
The other post told you about the WM_DEVICECHANGE message - but this is only a notification message broadcasting to all toplevel windows. This message informs all windows that a device has been changed (see Windows-SDK for help).
I've just tested the WM_DEVICECHANGE: the message is called after the media has been removed.
#include <DBT.H><br />
void CFrame::WmDeviceChange(WPARAM w,LPARAM l)<br />
case DBT_CONFIGCHANGECANCELED:<br />
case DBT_CONFIGCHANGED:<br />
case DBT_DEVICEARRIVAL:<br />
case DBT_DEVICEQUERYREMOVE:<br />
case DBT_DEVICEQUERYREMOVEFAILED:<br />
case DBT_DEVICEREMOVECOMPLETE:<br />
// here is the debug trap after the media has been removed<br />// no other event came up before or after eject the media<br />break;<br />
case DBT_DEVICEREMOVEPENDING:<br />
case DBT_DEVICETYPESPECIFIC:<br />
case DBT_USERDEFINED:<br />
TRACE("WmDeviceChange: 0x%04X\r\n",w);<br />
Thanks for all of your help!
My code is using shell programming! So all code are handled in this function:
HRESULT CXXXXXXXXX::QueryContextMenu ( HMENU hmenu, UINT uMenuIndex,
UINT uidFirstCmd, UINT uidLastCmd,
UINT uFlags )
I don't know how to associate the upper code with the message WM_DEVICECHANGE, could you help?
I created an MS Windows application working with virtual COM-ports and an MSI-installer for it.
My problem is that you have to install the virtual port (com0com sourceforge-project) by hand using the System->Hardware->"Add new hardware" function. I'd like to find a way to add the "hardware" to the system with my installer with as few user-interaction as possible.
I tried "DPInst" from the MS DFIx framework for installing drivers, but failed. DPInst installed the driver to the system in a PnP-way, making it wait for the hardware to be plugged in (which apparently will never happen
If you install the driver by hand, it works instantly...
P.S. I'd be happy if someone had some information or sample code on how to use the SetupAPI (SetupDIxxx functions) to install NEW HARDWARE. Maybe that would solve my problem. Looking at the docs it seems like you can only install/update drivers with it...
I get link error LNK1209 no matter how many times i retry. The .pdb file is there and updated. I've even tried replacing the LINK.EXE, DUMPBIN.EXE, EDITBIN.EXE and LIB.EXE files in the VC98 bin folder (I'm using Visual Studio 6).
I have a dialog box which has several buttons. In the background (behind the buttons) is a bitmap.
To reduce the size of the app, I would like to load the bitmap once the app has started (keeping it behind the buttons). I would also like to change the bitmap to a different one in response to events that occur in the program. How can I do this?
You can use LoadImage to load a bitmap, or GDI+ to load a jpg, etc. Then, you just draw it on the back of your dialog as you are now, and reload it according to your events, or store the base image path in a config file.
The reason I want to do this is that the executable is running on a remote machine, which (if I do any alterations on the app) I will be updating over a telephone line. If the exe is large it can take for ever to download, hence trying to remove the bitmap from the file and storing it on the remote machine so I only have to download it the once.
Now, to look at the MSDN examples - Ive been away from my PC for a day or two!
Remove the window styles (SetWindowLong(hwnd,GWL_STYLE,GetWindowLong(hwnd,GWL_STYLE)&~WS_BORDER);) for frames WS_BORDER, WS_DLGFRAME, WS_THICKFRAME etc. or call the CreateWindowEx() without these styles.
I have an MFC application in which I take records from a table in one database (Let's say database A, table A), and insert them into a table in another database (Let's say database B, table B). This is a sort of "database conversion".
The thing is, that in database A the record numbers are not necessarily consecutive (for instance there could be records #1,2 and 4), But in database B the records are inserted to table B with an automatic record number.
Table A (Database A) Table B (Database B)
record #1 ------------> record #1
record #2 ------------> record #2
record #4 ------------> record #3
My problem is that I need to save the record numbers of the records in database/table A, in order to use them later (for database relationship purposes).
(For instance - i need to know that record #3 in database B was actually record #4 in database A).
I used a CArray object to keep the indexes of the records of database/table A, but after I do the "database conversion" I need to use the indexes (of database A) in another application. how can I do this?
By the way, I am using C++ (and MFC) in .Net 2003.