the whole thing is , that with CopyFromScreen() Method i was able to compare an image (previously captured) to an image that is the same as the captured one cause it actually captured from that particular screen .
or more simply ,for example, an icon , cropped from desktop and saved as an image along with a textfile referencing its location(point) and its size (size(h,w))
so when we have captured.bar via File.WriteAllBytes(byte[]made it .bar) to a file + cuptured.txt with reference to the location and size we have a copy saved to hdd and its location and size in txt. (i didn't have to post all of the code but it works fine so if someone needs it.. i share feel free)
the way i achieve this is using a method i made DoCopyFScr() - to cupture portion of screen which is using the Bitmap2ByteArr() - saving the bitmap as ByteArr
then later when needed using byte[]- saved, to compare against its captured location on screen.
public void DoCopyFScr(Point SourceP, Size Mysz, string initDir, string Fname, bool SaveIt, bool DoCompare)
{
SetForegroundWindow(A window handle suplied here);
pause(200);
Point pZero = new Point(0, 0);
using (Bitmap bitmap = new Bitmap(Mysz.Width, Mysz.Height))
{
using (Graphics g = Graphics.FromImage(bitmap))
{
g.CopyFromScreen(SourceP, pZero, Msyz);
}
Image img = (Image)bitmap;
Clipboard.SetImage(img);
ItsCopiedFromScreen = true;
MyBtmpToByteArr b2arr = new MyBtmpToByteArr();// inststance of My bitmap to byte[]
AAdToAppLog("start Converting Bitmap To ByteArr");// logging programs activity in a listview via reflection
MyCuptredBtmpToolBox.CuptByteArr = b2arr.Bitmap2ByteArr(bitmap);
AAdToAppLog("Done Convertion ArrSize " + b2arr.Bitmap2ByteArr(bitmap).Length + ", Resting CopyDestionation SelctdIndx");
Combo_CopyFromScrn.SelectedIndex = 0;
if (SaveIt)
{
string btmpsRefrenceSave = MyCuptredBtmpToolBox.SourceX_Cuptured.ToString() + "," + MyCuptredBtmpToolBox.SourceY_Cuptured.ToString() + "," + MyCuptredBtmpToolBox.RectWidth_Cuptured.ToString() + "," + MyCuptredBtmpToolBox.RectHeight_Cuptured.ToString() + "," + TBX_FileSaveName.Text;
if (ItsLoadedFromFile)
{
File.WriteAllBytes(initDir + TBX_FileSaveName.Text, b2arr.Bitmap2ByteArr(bitmap));// See next block Method Bitmap2ByteArr method
File.WriteAllText(initDir + TBX_FileSaveName.Text.Replace("bar", "txt"), btmpsRefrenceSave);
}
else
{
File.WriteAllBytes(initDir + TBX_FileSaveName.Text + ExtBar, b2arr.Bitmap2ByteArr(bitmap));
File.WriteAllText(initDir + TBX_FileSaveName.Text.Replace("bar", "txt") + ExtTXT, btmpsRefrenceSave);
}
//MyCuptredBtmpToolBox.CupturedStaticBmp.Save(MyCuptredBtmpToolBox.FnameToSave.Replace(".bar", ".") + ExtJpg, ImageFormat.Jpeg);
bitmap.Save(initDir + TBX_FileSaveName.Text + ExtJpg, ImageFormat.Jpeg);
}
if (DoCompare)
{
AAdToAppLog("starting Compare " + Fname +" With Btmp2Arr From Screen");
R_ComparwByteArrClass tstCmp = new R_ComparwByteArrClass();
if (itsAutomated)
{
CompareByt2Btmp = R_ComparwByteArrClass.ByteArrCompare(DoAutoLoadCuptByteArr(initDir, Fname + ExtBar), b2arr.Bitmap2ByteArr(bitmap));
}
else
{
CompareByt2Btmp = R_ComparwByteArrClass.ByteArrCompare(MyLoadedBtmpToolBox.LoadedByteArr, b2arr.Bitmap2ByteArr(bitmap));
}
bring(MyApp);
AAdToAppLog(CompareByt2Btmp.ToString());
}
}
}
the bitmap to ByteArr class with method to convert the cuptured btmp to byte[]
public class MyBtmpToByteArr
{
public byte[] Bitmap2ByteArr(Bitmap btmpToConvertintoByteArr)
{
//Convert image to a byte array
System.Drawing.ImageConverter MyImgCvrtr = new System.Drawing.ImageConverter();
byte[] btImage = new byte[1];
btImage = (byte[])MyImgCvrtr.ConvertTo(btmpToConvertintoByteArr, btImage.GetType());
return btImage;
}
}
but if the location is changed i can't make it identify even though i gave the new location of the image on screen , when i did test though , using paint and with turning grid on i positioned two copies of the same cropped image and i did success but on a real scenario with a game screen where there is a shared background for few icons , i try to compare them to each other and do not succeed even though i gave the location , is there a unit that is smaller than a pixel maybe the graphics of the game uses a kind of unit that's a fraction of pixel ?? or maybe other unit so mybe the given location Point1 is X100 Y100 for first icon , and the other instead of being in 200,200 is actually at 200.33, 200.55 or so ... and that is why i dont get a dead lock position/location ? p.s i think it's using a diretx if not it's on openGL allmost sure on directx if it matters for what units is used to locate the images does a unit smaller than pixels exists at all... and commonly used ? if not how would you implement a founction that will loop on from say x100 to x150 and y100 to y150 so i could search for the image
