It took two nights to generate a grayscale image and used the ColorMatrix class. We wanted to set a 5*5 parameter matrix. I didn't understand the matrix copied on MSDN, it takes a lot of time to understand errors in two places when dragging, as recorded here:
1. Drag in. The e. Data. GetData (DataFormats. FileDrop) parameter is initially considered as DataFormats. Bitmap, and the returned Data is considered as Bitmap Data. The correct code is as follows:
Code highlighting produced by Actipro C
C # WinForm: paste the image to PictureBox and copy the image in PictureBox.
1. The program design interface is as follows:
Operation Method: press the shortcut key Ctrl + V and click a PictureBox to paste the image.
Press the shortcut key Ctrl + C and click a PictureBox to copy the image.
2. The main functional code
C # how to print pictures in picturebox, winform how to print pictures in picturebox
Step 1:
Drag a printdocument control to the interface.Code of the print button:C # code:
Private void button#click (Object sender, eventargs e) // print
{
Printdialog myprintdg = new printdialog ();
Myprintdg. Document = printdocument1;
If (myprintdg. showdialog () = dialogresult. OK) {try
{
Printdocument1
ObjectiveRecent projects need to PictureBox display network pictures of the small function to complete, do not want to use absolute path to take pictures of local files, because in the future to release to the user's own configuration will be very troublesome, simply set the path to a relative path, the picture is placed in their own projects. So the question is, how do you use PictureBox to take out the pi
In one project you need to add a scrollbar to PictureBox, as I have done with the web, put PictureBox on a panel, set the panel's AutoScroll to Ture, The SizeMode of PictureBox is set to AutoSize, but after this setting, the scroll bar does not appear as expected.Google, on the internet most of the above methods, it seems only on their own.
PictureBox (picture box) controls are used to display graphics and can serve as containers for other controls. The icon for the PictureBox control in the Toolbox is as shown in the figure:
1. Supported graphic formatsThe PictureBox control can display picture files in any of the following formats: bitmaps, icons, metafile, enhanced metafile, JPEG, or GIF files.
above.Three, PictureBox controls and timer controls1. Look First:2. Implementation processNew controls for PictureBox and timerIn order to achieve the relative size of the PictureBox control, it is important to note that changing the anchor layout is all checked!Format the picture display:Timer control interval Time setting:Events performed at intervals:3. Backg
PictureBox is a common image space in C #, this article is the study of the collection of network data, some collation and record1,picturebox Loading PicturesUsing system.drawing;//mode 1, load from picture file //The following path is write dead, you can get the program run path, so more flexible image AA = new Bitmap (@ "/program files/ Pictureboxcontroltest/tinyemulator_content.jpg "); picture
I have not tried to attach a network image when I used picturebox of winform.
Code The loadasync method can be used to load images asynchronously, And the loadprogresschanged event can be used to get the current loading progress.
Put a picturebox control, a button, a progress bar control on the form, and use a label to display the current progress percentage. The Code is as follows:
Private Void But
Method 1:
If the aspect ratio of the image to be loaded is not too unbalanced,
1. The sizemode attribute of picturebox can be changed to pictureboxsizemode. stretchimage,
2. Alternatively, the sizemode attribute of the dev control pictureedit Is Zoom. (ZOOM: Zoom; clip; stretchhorizontal: vertical stretch; stretchvertical: horizontal stretch; squeeze: compression)
In this way, the image loaded into the picturebox
Method 1: If the aspect ratio of the image to be loaded is not too unbalanced, you can change the sizemode attribute of picturebox to pictureboxsizemode. stretchimage. In this way, the image loaded into the picturebox will be filled with the entire picturebox. However, this method is not very good when the aspect ratio of an image is large. You can select method
During this time, I was doing a pedestrian statistics project based on EMGU, and when I framed the area, I found that there were always problems. Then I wrote a small program test, found the problem in the image matrix scan this pieceThe coordinates of the mouse on the PictureBox areAnd the EMGU is scanned from the Y direction.1 for(intx =0; x )2 {3 for(inty =0; Y )4 {5
1. To realize the transparency of controls and backgrounds in C # WinForm, you can set their parent control by setting the control's BackColor property to Transparent. Because in C #, the transparency of the control refers to the transparency of the parent form. If you do not set the Parent property, the control will only be transparent to the form and will be displayed with the background color of the form (the default control) re-brushed again as its own background.2. With more controls, you c
The first type: (This method is more stupid)Hide several PictureBox on the page that need to change the page, such as the following PicfromDefine the method where you want to change the image:System.Resources.ResourceManager Resources = new System.Resources.ResourceManager (typeof (Form1));Then it can be changed (such as Picto's picture to change to Picfrom's picture)This.picTo.Image = ((System.Drawing.Image) (resources. GetObject ("Picfrom.image"));T
Dragging pictures in PictureBox in. NetFirst put a PictureBox on the form and specify a picture to display
Define a series of variables to handle picture dragging' Handle picture dragPrivate M_leftx as IntegerPrivate M_lefty as IntegerDim M_mouseposx as IntegerDim M_mouseposy as IntegerDim M_driftx as IntegerDim M_drifty as Integerand assigns an initial value, which can be done when the form is initializedM
When I recently read the program, I found that when I used picturebox images to display images, there will be "system. Drawing. image. fromfile
Assign provides picturebox. Image mirroring in the following ways:
Method 1: Use image. fromfile
Me.PictureBox1.Image = Image.FromFile("f:\img1.jpg")
Method 2: Use image. fromstream
Dim fs As System.IO.FileStream = System.IO.File.OpenRead("f:\img1.jpg")
Me. pic
The picture frame is essential, regardless of which door has the component programming language. C # language is a very rich language, and the picture frame component is naturally indispensable. The main properties of the picture frame component are:Name,image,SizeMode,BorderStyle . The Name property is used to set the object names of the picture. The Image property is used to add a picture. SizeMode is used to set the size mode of the picture. BorderStyle The border style used to set the pictur
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.