Today, a friend asked me that when he used fillrectangle to draw an image to a form, he always misaligned and did not know what was going on. Take me
Code Let's take a look at the Code as follows:
Private
Void
Drawtitle_right
First, the coordinate grid in the GDI + is centered through each pixel.For DrawRectangleThe length and width of the rectangle refer to the interval between pixels.DrawRectangle (Pens. Black, 0, 0, 5, 4 );A rectangle box with 6 pixels and 5 pixels in
From: http://wf5360308.cnblogs.com/
Create a drawing surface
There are two common methods to create a drawing surface. Next, we try to obtain the plotting surface of picturebox.
Private void form1_load (Object sender, system. eventargs E){
//
Create a drawing surface There are two common methods to create a drawing surface. Next, we try to obtain the plotting surface of picturebox.Private void form1_load (Object sender, system. eventargs E){// Obtain the drawing surface of
3. Text operations in GDI +
Using system. drawing;
Using system. Drawing. drawing2d;
Using system. Drawing. text;
Private void button#click (Object sender, eventargs E)
{
Graphics G = This. creategraphics ();
G. fillrectangle (brushes.
The igplineargradientbrush. Blend attribute corresponds to an igpblend object;
The two parameters in tgpblend. Create (factors, positions); are single-type arrays,Factors color intensity factor, positions is the ratio of location offset.
For
Method 2: tgplineargradientbrush. Create (rectangle, color 1, color 2, gradient mode );
Third Construction Method: tgplineargradientbrush. Create (rectangle, color 1, color 2, angle );
In the third construction method, the "angle" (X axis,
Igpimageattributes method:
Setwrapmode () {set surround mode} This is the unique method except clone in igpimageattributes that is irrelevant to the color.
Setthreshold (), setthreshold () {set, cancel "threshold"} value range: 0 .. 1. If the
In the process of using GDI +, you often need to paste images on the dialog box or control. Most of the time, we use the drawimage function, which is very useful. When the target area is larger than the image, the image can be stretched, but when
Igpgraphicspath. flatten (); // convert the curve in the path to an approximate straight line segment (only the betiller line and straight line in the path ). igpgraphicspath. outline (); // same as flatten (); igpgraphicspath. warp (); // The
Like java, C # provides a rich set of class libraries, methods, and events for developers to use. C # It also introduces GDI +, which evolved from GDI and has more powerful functions and simplifies than GDI.ProgramMember programming work.
Code for generating zryou code (code39 code)
"CoDe 39 bar code Introduction 』
COThe de39 Bar Code represents a total of 43 characters including letters, numbers, and other symbols: A-Z, 0-9,-. $/+ %, space, etc. Its main features are as follows:
The Menu Designer is usually attached to visual programming tools. You can use it to conveniently and quickly edit and design menus. This document describes how to use the Menu Designer to design menus and how to implement personalized menus.
The
Chart. aspx. CS
Code :
Using system;
Using system. collections;
Using system. componentmodel;
Using system. Data;
Using system. Web;
Using system. Web. sessionstate;
Using system. Web. UI;
Using system. Web. UI. webcontrols;
Using system. Web. UI.
C.r. Use a bar code,
1. Generate the barcode through the code39drawimagebord. CS class into a byte [] variable.
2. Save the byte [] variable to the image object in SQL Server.
3. Drag the image variable in the database to the Crystal Report.
5. Gradient Fill
You need to use two brushes:
Linear gradient Brush (LinearGradientBrush)
Path gradient Brush (Pathguadientbrush)
private void Button4_Click (Object Sender,system.eventargs e)
{
Drawing surface
Graphics g
Graphics Graphics (DC. GETSAFEHDC ()); graphics. Clear (Color::white); Defines three colors that participate in the gradient color colors[] ={ color::red, //Red Color::green, //Transition color green color::blue //Blue} ;Define the
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